aws-sdk-comprehend 0.24.0

// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
pub fn parse_http_generic_error(
    response: &http::Response<bytes::Bytes>,
) -> Result<aws_smithy_types::Error, aws_smithy_json::deserialize::error::DeserializeError> {
    crate::json_errors::parse_generic_error(response.body(), response.headers())
}

pub(crate) fn deser_structure_crate_error_batch_size_limit_exceeded_exception_json_err(
    value: &[u8],
    mut builder: crate::error::batch_size_limit_exceeded_exception::Builder,
) -> Result<
    crate::error::batch_size_limit_exceeded_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_internal_server_exception_json_err(
    value: &[u8],
    mut builder: crate::error::internal_server_exception::Builder,
) -> Result<
    crate::error::internal_server_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_invalid_request_exception_json_err(
    value: &[u8],
    mut builder: crate::error::invalid_request_exception::Builder,
) -> Result<
    crate::error::invalid_request_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "Reason" => {
                        builder = builder.set_reason(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::InvalidRequestReason::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    "Detail" => {
                        builder = builder.set_detail(
                            crate::json_deser::deser_structure_crate_model_invalid_request_detail(
                                tokens,
                            )?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_text_size_limit_exceeded_exception_json_err(
    value: &[u8],
    mut builder: crate::error::text_size_limit_exceeded_exception::Builder,
) -> Result<
    crate::error::text_size_limit_exceeded_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_dominant_language(
    value: &[u8],
    mut builder: crate::output::batch_detect_dominant_language_output::Builder,
) -> Result<
    crate::output::batch_detect_dominant_language_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_dominant_language_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_unsupported_language_exception_json_err(
    value: &[u8],
    mut builder: crate::error::unsupported_language_exception::Builder,
) -> Result<
    crate::error::unsupported_language_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_entities(
    value: &[u8],
    mut builder: crate::output::batch_detect_entities_output::Builder,
) -> Result<
    crate::output::batch_detect_entities_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_entities_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_key_phrases(
    value: &[u8],
    mut builder: crate::output::batch_detect_key_phrases_output::Builder,
) -> Result<
    crate::output::batch_detect_key_phrases_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_key_phrases_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_sentiment(
    value: &[u8],
    mut builder: crate::output::batch_detect_sentiment_output::Builder,
) -> Result<
    crate::output::batch_detect_sentiment_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_sentiment_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_syntax(
    value: &[u8],
    mut builder: crate::output::batch_detect_syntax_output::Builder,
) -> Result<
    crate::output::batch_detect_syntax_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_syntax_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_batch_detect_targeted_sentiment(
    value: &[u8],
    mut builder: crate::output::batch_detect_targeted_sentiment_output::Builder,
) -> Result<
    crate::output::batch_detect_targeted_sentiment_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResultList" => {
                        builder = builder.set_result_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_detect_targeted_sentiment_result(tokens)?
                        );
                    }
                    "ErrorList" => {
                        builder = builder.set_error_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_batch_item_error_list(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_resource_unavailable_exception_json_err(
    value: &[u8],
    mut builder: crate::error::resource_unavailable_exception::Builder,
) -> Result<
    crate::error::resource_unavailable_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_classify_document(
    value: &[u8],
    mut builder: crate::output::classify_document_output::Builder,
) -> Result<
    crate::output::classify_document_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Classes" => {
                        builder = builder.set_classes(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_classes(
                                tokens,
                            )?,
                        );
                    }
                    "Labels" => {
                        builder = builder.set_labels(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_labels(
                                tokens,
                            )?,
                        );
                    }
                    "DocumentMetadata" => {
                        builder = builder.set_document_metadata(
                            crate::json_deser::deser_structure_crate_model_document_metadata(
                                tokens,
                            )?,
                        );
                    }
                    "DocumentType" => {
                        builder = builder.set_document_type(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_document_type(tokens)?
                        );
                    }
                    "Errors" => {
                        builder = builder.set_errors(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_errors(
                                tokens,
                            )?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_contains_pii_entities(
    value: &[u8],
    mut builder: crate::output::contains_pii_entities_output::Builder,
) -> Result<
    crate::output::contains_pii_entities_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Labels" => {
                        builder = builder.set_labels(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_entity_labels(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_kms_key_validation_exception_json_err(
    value: &[u8],
    mut builder: crate::error::kms_key_validation_exception::Builder,
) -> Result<
    crate::error::kms_key_validation_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_resource_in_use_exception_json_err(
    value: &[u8],
    mut builder: crate::error::resource_in_use_exception::Builder,
) -> Result<
    crate::error::resource_in_use_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_resource_limit_exceeded_exception_json_err(
    value: &[u8],
    mut builder: crate::error::resource_limit_exceeded_exception::Builder,
) -> Result<
    crate::error::resource_limit_exceeded_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_too_many_requests_exception_json_err(
    value: &[u8],
    mut builder: crate::error::too_many_requests_exception::Builder,
) -> Result<
    crate::error::too_many_requests_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_too_many_tags_exception_json_err(
    value: &[u8],
    mut builder: crate::error::too_many_tags_exception::Builder,
) -> Result<
    crate::error::too_many_tags_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_create_document_classifier(
    value: &[u8],
    mut builder: crate::output::create_document_classifier_output::Builder,
) -> Result<
    crate::output::create_document_classifier_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassifierArn" => {
                        builder = builder.set_document_classifier_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_resource_not_found_exception_json_err(
    value: &[u8],
    mut builder: crate::error::resource_not_found_exception::Builder,
) -> Result<
    crate::error::resource_not_found_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_create_endpoint(
    value: &[u8],
    mut builder: crate::output::create_endpoint_output::Builder,
) -> Result<
    crate::output::create_endpoint_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EndpointArn" => {
                        builder = builder.set_endpoint_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_create_entity_recognizer(
    value: &[u8],
    mut builder: crate::output::create_entity_recognizer_output::Builder,
) -> Result<
    crate::output::create_entity_recognizer_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntityRecognizerArn" => {
                        builder = builder.set_entity_recognizer_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_job_not_found_exception_json_err(
    value: &[u8],
    mut builder: crate::error::job_not_found_exception::Builder,
) -> Result<
    crate::error::job_not_found_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_document_classification_job(
    value: &[u8],
    mut builder: crate::output::describe_document_classification_job_output::Builder,
) -> Result<
    crate::output::describe_document_classification_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassificationJobProperties" => {
                        builder = builder.set_document_classification_job_properties(
                            crate::json_deser::deser_structure_crate_model_document_classification_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_document_classifier(
    value: &[u8],
    mut builder: crate::output::describe_document_classifier_output::Builder,
) -> Result<
    crate::output::describe_document_classifier_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassifierProperties" => {
                        builder = builder.set_document_classifier_properties(
                            crate::json_deser::deser_structure_crate_model_document_classifier_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_dominant_language_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_dominant_language_detection_job_output::Builder,
) -> Result<
    crate::output::describe_dominant_language_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DominantLanguageDetectionJobProperties" => {
                        builder = builder.set_dominant_language_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_dominant_language_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_endpoint(
    value: &[u8],
    mut builder: crate::output::describe_endpoint_output::Builder,
) -> Result<
    crate::output::describe_endpoint_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EndpointProperties" => {
                        builder = builder.set_endpoint_properties(
                            crate::json_deser::deser_structure_crate_model_endpoint_properties(
                                tokens,
                            )?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_entities_detection_job_output::Builder,
) -> Result<
    crate::output::describe_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntitiesDetectionJobProperties" => {
                        builder = builder.set_entities_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_entities_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_entity_recognizer(
    value: &[u8],
    mut builder: crate::output::describe_entity_recognizer_output::Builder,
) -> Result<
    crate::output::describe_entity_recognizer_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntityRecognizerProperties" => {
                        builder = builder.set_entity_recognizer_properties(
                            crate::json_deser::deser_structure_crate_model_entity_recognizer_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_events_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_events_detection_job_output::Builder,
) -> Result<
    crate::output::describe_events_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EventsDetectionJobProperties" => {
                        builder = builder.set_events_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_events_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_key_phrases_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_key_phrases_detection_job_output::Builder,
) -> Result<
    crate::output::describe_key_phrases_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "KeyPhrasesDetectionJobProperties" => {
                        builder = builder.set_key_phrases_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_key_phrases_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_pii_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_pii_entities_detection_job_output::Builder,
) -> Result<
    crate::output::describe_pii_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "PiiEntitiesDetectionJobProperties" => {
                        builder = builder.set_pii_entities_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_pii_entities_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_resource_policy(
    value: &[u8],
    mut builder: crate::output::describe_resource_policy_output::Builder,
) -> Result<
    crate::output::describe_resource_policy_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResourcePolicy" => {
                        builder = builder.set_resource_policy(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "CreationTime" => {
                        builder = builder.set_creation_time(
                            aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                tokens.next(),
                                aws_smithy_types::date_time::Format::EpochSeconds,
                            )?,
                        );
                    }
                    "LastModifiedTime" => {
                        builder = builder.set_last_modified_time(
                            aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                tokens.next(),
                                aws_smithy_types::date_time::Format::EpochSeconds,
                            )?,
                        );
                    }
                    "PolicyRevisionId" => {
                        builder = builder.set_policy_revision_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::describe_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "SentimentDetectionJobProperties" => {
                        builder = builder.set_sentiment_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_sentiment_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_targeted_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_targeted_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::describe_targeted_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "TargetedSentimentDetectionJobProperties" => {
                        builder = builder.set_targeted_sentiment_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_targeted_sentiment_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_describe_topics_detection_job(
    value: &[u8],
    mut builder: crate::output::describe_topics_detection_job_output::Builder,
) -> Result<
    crate::output::describe_topics_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "TopicsDetectionJobProperties" => {
                        builder = builder.set_topics_detection_job_properties(
                            crate::json_deser::deser_structure_crate_model_topics_detection_job_properties(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_dominant_language(
    value: &[u8],
    mut builder: crate::output::detect_dominant_language_output::Builder,
) -> Result<
    crate::output::detect_dominant_language_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Languages" => {
                        builder = builder.set_languages(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_dominant_languages(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_entities(
    value: &[u8],
    mut builder: crate::output::detect_entities_output::Builder,
) -> Result<
    crate::output::detect_entities_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Entities" => {
                        builder = builder.set_entities(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_entities(tokens)?
                        );
                    }
                    "DocumentMetadata" => {
                        builder = builder.set_document_metadata(
                            crate::json_deser::deser_structure_crate_model_document_metadata(
                                tokens,
                            )?,
                        );
                    }
                    "DocumentType" => {
                        builder = builder.set_document_type(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_document_type(tokens)?
                        );
                    }
                    "Blocks" => {
                        builder = builder.set_blocks(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_blocks(
                                tokens,
                            )?,
                        );
                    }
                    "Errors" => {
                        builder = builder.set_errors(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_errors(
                                tokens,
                            )?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_key_phrases(
    value: &[u8],
    mut builder: crate::output::detect_key_phrases_output::Builder,
) -> Result<
    crate::output::detect_key_phrases_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "KeyPhrases" => {
                        builder = builder.set_key_phrases(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_key_phrases(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_pii_entities(
    value: &[u8],
    mut builder: crate::output::detect_pii_entities_output::Builder,
) -> Result<
    crate::output::detect_pii_entities_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Entities" => {
                        builder = builder.set_entities(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_pii_entities(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_sentiment(
    value: &[u8],
    mut builder: crate::output::detect_sentiment_output::Builder,
) -> Result<
    crate::output::detect_sentiment_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Sentiment" => {
                        builder = builder.set_sentiment(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::SentimentType::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    "SentimentScore" => {
                        builder = builder.set_sentiment_score(
                            crate::json_deser::deser_structure_crate_model_sentiment_score(tokens)?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_syntax(
    value: &[u8],
    mut builder: crate::output::detect_syntax_output::Builder,
) -> Result<
    crate::output::detect_syntax_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "SyntaxTokens" => {
                        builder = builder.set_syntax_tokens(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_syntax_tokens(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_detect_targeted_sentiment(
    value: &[u8],
    mut builder: crate::output::detect_targeted_sentiment_output::Builder,
) -> Result<
    crate::output::detect_targeted_sentiment_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Entities" => {
                        builder = builder.set_entities(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_targeted_sentiment_entities(tokens)?
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_import_model(
    value: &[u8],
    mut builder: crate::output::import_model_output::Builder,
) -> Result<
    crate::output::import_model_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ModelArn" => {
                        builder = builder.set_model_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_invalid_filter_exception_json_err(
    value: &[u8],
    mut builder: crate::error::invalid_filter_exception::Builder,
) -> Result<
    crate::error::invalid_filter_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_document_classification_jobs(
    value: &[u8],
    mut builder: crate::output::list_document_classification_jobs_output::Builder,
) -> Result<
    crate::output::list_document_classification_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassificationJobPropertiesList" => {
                        builder = builder.set_document_classification_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_document_classification_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_document_classifiers(
    value: &[u8],
    mut builder: crate::output::list_document_classifiers_output::Builder,
) -> Result<
    crate::output::list_document_classifiers_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassifierPropertiesList" => {
                        builder = builder.set_document_classifier_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_document_classifier_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_document_classifier_summaries(
    value: &[u8],
    mut builder: crate::output::list_document_classifier_summaries_output::Builder,
) -> Result<
    crate::output::list_document_classifier_summaries_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DocumentClassifierSummariesList" => {
                        builder = builder.set_document_classifier_summaries_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_document_classifier_summaries_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_dominant_language_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_dominant_language_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_dominant_language_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "DominantLanguageDetectionJobPropertiesList" => {
                        builder = builder.set_dominant_language_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_dominant_language_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_endpoints(
    value: &[u8],
    mut builder: crate::output::list_endpoints_output::Builder,
) -> Result<
    crate::output::list_endpoints_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EndpointPropertiesList" => {
                        builder = builder.set_endpoint_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_endpoint_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_entities_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_entities_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_entities_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntitiesDetectionJobPropertiesList" => {
                        builder = builder.set_entities_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_entities_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_entity_recognizers(
    value: &[u8],
    mut builder: crate::output::list_entity_recognizers_output::Builder,
) -> Result<
    crate::output::list_entity_recognizers_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntityRecognizerPropertiesList" => {
                        builder = builder.set_entity_recognizer_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_entity_recognizer_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_entity_recognizer_summaries(
    value: &[u8],
    mut builder: crate::output::list_entity_recognizer_summaries_output::Builder,
) -> Result<
    crate::output::list_entity_recognizer_summaries_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EntityRecognizerSummariesList" => {
                        builder = builder.set_entity_recognizer_summaries_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_entity_recognizer_summaries_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_events_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_events_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_events_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "EventsDetectionJobPropertiesList" => {
                        builder = builder.set_events_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_events_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_key_phrases_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_key_phrases_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_key_phrases_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "KeyPhrasesDetectionJobPropertiesList" => {
                        builder = builder.set_key_phrases_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_key_phrases_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_pii_entities_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_pii_entities_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_pii_entities_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "PiiEntitiesDetectionJobPropertiesList" => {
                        builder = builder.set_pii_entities_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_pii_entities_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_sentiment_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_sentiment_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_sentiment_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "SentimentDetectionJobPropertiesList" => {
                        builder = builder.set_sentiment_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_sentiment_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_tags_for_resource(
    value: &[u8],
    mut builder: crate::output::list_tags_for_resource_output::Builder,
) -> Result<
    crate::output::list_tags_for_resource_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "ResourceArn" => {
                        builder = builder.set_resource_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "Tags" => {
                        builder = builder.set_tags(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_tag_list(
                                tokens,
                            )?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_targeted_sentiment_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_targeted_sentiment_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_targeted_sentiment_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "TargetedSentimentDetectionJobPropertiesList" => {
                        builder = builder.set_targeted_sentiment_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_targeted_sentiment_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_list_topics_detection_jobs(
    value: &[u8],
    mut builder: crate::output::list_topics_detection_jobs_output::Builder,
) -> Result<
    crate::output::list_topics_detection_jobs_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "TopicsDetectionJobPropertiesList" => {
                        builder = builder.set_topics_detection_job_properties_list(
                            crate::json_deser::deser_list_com_amazonaws_comprehend_topics_detection_job_properties_list(tokens)?
                        );
                    }
                    "NextToken" => {
                        builder = builder.set_next_token(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_put_resource_policy(
    value: &[u8],
    mut builder: crate::output::put_resource_policy_output::Builder,
) -> Result<
    crate::output::put_resource_policy_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "PolicyRevisionId" => {
                        builder = builder.set_policy_revision_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_document_classification_job(
    value: &[u8],
    mut builder: crate::output::start_document_classification_job_output::Builder,
) -> Result<
    crate::output::start_document_classification_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_dominant_language_detection_job(
    value: &[u8],
    mut builder: crate::output::start_dominant_language_detection_job_output::Builder,
) -> Result<
    crate::output::start_dominant_language_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::start_entities_detection_job_output::Builder,
) -> Result<
    crate::output::start_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_events_detection_job(
    value: &[u8],
    mut builder: crate::output::start_events_detection_job_output::Builder,
) -> Result<
    crate::output::start_events_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_key_phrases_detection_job(
    value: &[u8],
    mut builder: crate::output::start_key_phrases_detection_job_output::Builder,
) -> Result<
    crate::output::start_key_phrases_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_pii_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::start_pii_entities_detection_job_output::Builder,
) -> Result<
    crate::output::start_pii_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::start_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::start_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_targeted_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::start_targeted_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::start_targeted_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_start_topics_detection_job(
    value: &[u8],
    mut builder: crate::output::start_topics_detection_job_output::Builder,
) -> Result<
    crate::output::start_topics_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobArn" => {
                        builder = builder.set_job_arn(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_dominant_language_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_dominant_language_detection_job_output::Builder,
) -> Result<
    crate::output::stop_dominant_language_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_entities_detection_job_output::Builder,
) -> Result<
    crate::output::stop_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_events_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_events_detection_job_output::Builder,
) -> Result<
    crate::output::stop_events_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_key_phrases_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_key_phrases_detection_job_output::Builder,
) -> Result<
    crate::output::stop_key_phrases_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_pii_entities_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_pii_entities_detection_job_output::Builder,
) -> Result<
    crate::output::stop_pii_entities_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::stop_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_operation_crate_operation_stop_targeted_sentiment_detection_job(
    value: &[u8],
    mut builder: crate::output::stop_targeted_sentiment_detection_job_output::Builder,
) -> Result<
    crate::output::stop_targeted_sentiment_detection_job_output::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "JobId" => {
                        builder = builder.set_job_id(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    "JobStatus" => {
                        builder = builder.set_job_status(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| {
                                s.to_unescaped()
                                    .map(|u| crate::model::JobStatus::from(u.as_ref()))
                            })
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_concurrent_modification_exception_json_err(
    value: &[u8],
    mut builder: crate::error::concurrent_modification_exception::Builder,
) -> Result<
    crate::error::concurrent_modification_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn deser_structure_crate_error_too_many_tag_keys_exception_json_err(
    value: &[u8],
    mut builder: crate::error::too_many_tag_keys_exception::Builder,
) -> Result<
    crate::error::too_many_tag_keys_exception::Builder,
    aws_smithy_json::deserialize::error::DeserializeError,
> {
    let mut tokens_owned =
        aws_smithy_json::deserialize::json_token_iter(crate::json_deser::or_empty_doc(value))
            .peekable();
    let tokens = &mut tokens_owned;
    aws_smithy_json::deserialize::token::expect_start_object(tokens.next())?;
    loop {
        match tokens.next().transpose()? {
            Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
            Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                match key.to_unescaped()?.as_ref() {
                    "Message" => {
                        builder = builder.set_message(
                            aws_smithy_json::deserialize::token::expect_string_or_null(
                                tokens.next(),
                            )?
                            .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                            .transpose()?,
                        );
                    }
                    _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                }
            }
            other => {
                return Err(
                    aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                        "expected object key or end object, found: {:?}",
                        other
                    )),
                )
            }
        }
    }
    if tokens.next().is_some() {
        return Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "found more JSON tokens after completing parsing",
            ),
        );
    }
    Ok(builder)
}

pub(crate) fn or_empty_doc(data: &[u8]) -> &[u8] {
    if data.is_empty() {
        b"{}"
    } else {
        data
    }
}

pub(crate) fn deser_structure_crate_model_invalid_request_detail<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::InvalidRequestDetail>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::invalid_request_detail::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Reason" => {
                                builder = builder.set_reason(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::InvalidRequestDetailReason::from(
                                                u.as_ref(),
                                            )
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_dominant_language_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectDominantLanguageItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_dominant_language_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_batch_item_error_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchItemError>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_item_error(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_entities_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectEntitiesItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_entities_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_key_phrases_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectKeyPhrasesItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_key_phrases_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_sentiment_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectSentimentItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_sentiment_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_syntax_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectSyntaxItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_syntax_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_detect_targeted_sentiment_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BatchDetectTargetedSentimentItemResult>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_batch_detect_targeted_sentiment_item_result(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_classes<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentClass>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_class(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_labels<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentLabel>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_label(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_metadata<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentMetadata>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_metadata::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Pages" => {
                                builder = builder.set_pages(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "ExtractedCharacters" => {
                                builder = builder.set_extracted_characters(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_extracted_characters(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_document_type<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentTypeListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_type_list_item(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_errors<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::ErrorsListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_errors_list_item(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_entity_labels<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntityLabel>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entity_label(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_classification_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClassificationJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::document_classification_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "DocumentClassifierArn" => {
                                builder = builder.set_document_classifier_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_classifier_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClassifierProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_classifier_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DocumentClassifierArn" => {
                                builder = builder.set_document_classifier_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Status" => {
                                builder = builder.set_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::ModelStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "TrainingStartTime" => {
                                builder = builder.set_training_start_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "TrainingEndTime" => {
                                builder = builder.set_training_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_document_classifier_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_document_classifier_output_data_config(tokens)?
                                );
                            }
                            "ClassifierMetadata" => {
                                builder = builder.set_classifier_metadata(
                                    crate::json_deser::deser_structure_crate_model_classifier_metadata(tokens)?
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            "Mode" => {
                                builder = builder.set_mode(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::DocumentClassifierMode::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "ModelKmsKeyId" => {
                                builder = builder.set_model_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VersionName" => {
                                builder = builder.set_version_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SourceModelArn" => {
                                builder = builder.set_source_model_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_dominant_language_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DominantLanguageDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::dominant_language_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_endpoint_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EndpointProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::endpoint_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "EndpointArn" => {
                                builder = builder.set_endpoint_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Status" => {
                                builder = builder.set_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::EndpointStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "ModelArn" => {
                                builder = builder.set_model_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "DesiredModelArn" => {
                                builder = builder.set_desired_model_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "DesiredInferenceUnits" => {
                                builder = builder.set_desired_inference_units(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "CurrentInferenceUnits" => {
                                builder = builder.set_current_inference_units(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "CreationTime" => {
                                builder = builder.set_creation_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "LastModifiedTime" => {
                                builder = builder.set_last_modified_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "DesiredDataAccessRoleArn" => {
                                builder = builder.set_desired_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entities_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntitiesDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entities_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EntityRecognizerArn" => {
                                builder = builder.set_entity_recognizer_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "EntityRecognizerArn" => {
                                builder = builder.set_entity_recognizer_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Status" => {
                                builder = builder.set_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::ModelStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "TrainingStartTime" => {
                                builder = builder.set_training_start_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "TrainingEndTime" => {
                                builder = builder.set_training_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_input_data_config(tokens)?
                                );
                            }
                            "RecognizerMetadata" => {
                                builder = builder.set_recognizer_metadata(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_metadata(tokens)?
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            "ModelKmsKeyId" => {
                                builder = builder.set_model_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VersionName" => {
                                builder = builder.set_version_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SourceModelArn" => {
                                builder = builder.set_source_model_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_events_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EventsDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::events_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "TargetEventTypes" => {
                                builder = builder.set_target_event_types(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_target_event_types(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_key_phrases_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::KeyPhrasesDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::key_phrases_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_pii_entities_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::PiiEntitiesDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::pii_entities_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_pii_output_data_config(tokens)?
                                );
                            }
                            "RedactionConfig" => {
                                builder = builder.set_redaction_config(
                                    crate::json_deser::deser_structure_crate_model_redaction_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Mode" => {
                                builder = builder.set_mode(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::PiiEntitiesDetectionMode::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_sentiment_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::SentimentDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::sentiment_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_targeted_sentiment_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::TargetedSentimentDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::targeted_sentiment_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::LanguageCode::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_topics_detection_job_properties<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::TopicsDetectionJobProperties>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::topics_detection_job_properties::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "JobId" => {
                                builder = builder.set_job_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobArn" => {
                                builder = builder.set_job_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobName" => {
                                builder = builder.set_job_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "JobStatus" => {
                                builder = builder.set_job_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::JobStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Message" => {
                                builder = builder.set_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SubmitTime" => {
                                builder = builder.set_submit_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "EndTime" => {
                                builder = builder.set_end_time(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "InputDataConfig" => {
                                builder = builder.set_input_data_config(
                                    crate::json_deser::deser_structure_crate_model_input_data_config(tokens)?
                                );
                            }
                            "OutputDataConfig" => {
                                builder = builder.set_output_data_config(
                                    crate::json_deser::deser_structure_crate_model_output_data_config(tokens)?
                                );
                            }
                            "NumberOfTopics" => {
                                builder = builder.set_number_of_topics(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "DataAccessRoleArn" => {
                                builder = builder.set_data_access_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VolumeKmsKeyId" => {
                                builder = builder.set_volume_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "VpcConfig" => {
                                builder = builder.set_vpc_config(
                                    crate::json_deser::deser_structure_crate_model_vpc_config(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_dominant_languages<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DominantLanguage>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_dominant_language(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_entities<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::Entity>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = crate::json_deser::deser_structure_crate_model_entity(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_blocks<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::Block>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = crate::json_deser::deser_structure_crate_model_block(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_key_phrases<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::KeyPhrase>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_key_phrase(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_pii_entities<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::PiiEntity>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_pii_entity(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_sentiment_score<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::SentimentScore>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::sentiment_score::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Positive" => {
                                builder = builder.set_positive(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Negative" => {
                                builder = builder.set_negative(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Neutral" => {
                                builder = builder.set_neutral(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Mixed" => {
                                builder = builder.set_mixed(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_syntax_tokens<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::SyntaxToken>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_syntax_token(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_targeted_sentiment_entities<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::TargetedSentimentEntity>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_targeted_sentiment_entity(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_document_classification_job_properties_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentClassificationJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_classification_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_document_classifier_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentClassifierProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_classifier_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_document_classifier_summaries_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentClassifierSummary>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_document_classifier_summary(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_dominant_language_detection_job_properties_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DominantLanguageDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_dominant_language_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_endpoint_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EndpointProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_endpoint_properties(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entities_detection_job_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntitiesDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entities_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entity_recognizer_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntityRecognizerProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entity_recognizer_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entity_recognizer_summaries_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntityRecognizerSummary>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entity_recognizer_summary(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_events_detection_job_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EventsDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_events_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_key_phrases_detection_job_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::KeyPhrasesDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_key_phrases_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_pii_entities_detection_job_properties_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::PiiEntitiesDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_pii_entities_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_sentiment_detection_job_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::SentimentDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_sentiment_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_tag_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::Tag>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = crate::json_deser::deser_structure_crate_model_tag(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_targeted_sentiment_detection_job_properties_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::TargetedSentimentDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_targeted_sentiment_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_topics_detection_job_properties_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::TopicsDetectionJobProperties>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_topics_detection_job_properties(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_dominant_language_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectDominantLanguageItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::batch_detect_dominant_language_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Languages" => {
                                builder = builder.set_languages(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_dominant_languages(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_item_error<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchItemError>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::batch_item_error::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "ErrorCode" => {
                                builder = builder.set_error_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "ErrorMessage" => {
                                builder = builder.set_error_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_entities_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectEntitiesItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::batch_detect_entities_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Entities" => {
                                builder = builder.set_entities(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_entities(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_key_phrases_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectKeyPhrasesItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::batch_detect_key_phrases_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "KeyPhrases" => {
                                builder = builder.set_key_phrases(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_key_phrases(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_sentiment_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectSentimentItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::batch_detect_sentiment_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Sentiment" => {
                                builder = builder.set_sentiment(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::SentimentType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "SentimentScore" => {
                                builder = builder.set_sentiment_score(
                                    crate::json_deser::deser_structure_crate_model_sentiment_score(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_syntax_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectSyntaxItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::batch_detect_syntax_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "SyntaxTokens" => {
                                builder = builder.set_syntax_tokens(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_syntax_tokens(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_batch_detect_targeted_sentiment_item_result<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BatchDetectTargetedSentimentItemResult>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::batch_detect_targeted_sentiment_item_result::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Index" => {
                                builder = builder.set_index(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Entities" => {
                                builder = builder.set_entities(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_targeted_sentiment_entities(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_class<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClass>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_class::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Name" => {
                                builder = builder.set_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_label<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentLabel>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_label::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Name" => {
                                builder = builder.set_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_extracted_characters<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::ExtractedCharactersListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_extracted_characters_list_item(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_type_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentTypeListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_type_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::DocumentType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_errors_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::ErrorsListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::errors_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "ErrorCode" => {
                                builder = builder.set_error_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::PageBasedErrorCode::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "ErrorMessage" => {
                                builder = builder.set_error_message(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_label<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::EntityLabel>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_label::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Name" => {
                                builder = builder.set_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::PiiEntityType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_input_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::InputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::input_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "InputFormat" => {
                                builder = builder.set_input_format(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::InputFormat::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "DocumentReaderConfig" => {
                                builder = builder.set_document_reader_config(
                                    crate::json_deser::deser_structure_crate_model_document_reader_config(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_output_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::OutputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::output_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KmsKeyId" => {
                                builder = builder.set_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_vpc_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::VpcConfig>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::vpc_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "SecurityGroupIds" => {
                                builder = builder.set_security_group_ids(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_security_group_ids(tokens)?
                                );
                            }
                            "Subnets" => {
                                builder = builder.set_subnets(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_subnets(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_classifier_input_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClassifierInputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::document_classifier_input_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DataFormat" => {
                                builder = builder.set_data_format(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::DocumentClassifierDataFormat::from(
                                                u.as_ref(),
                                            )
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "TestS3Uri" => {
                                builder = builder.set_test_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "LabelDelimiter" => {
                                builder = builder.set_label_delimiter(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "AugmentedManifests" => {
                                builder = builder.set_augmented_manifests(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_document_classifier_augmented_manifests_list(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_classifier_output_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClassifierOutputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::document_classifier_output_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KmsKeyId" => {
                                builder = builder.set_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_classifier_metadata<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::ClassifierMetadata>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::classifier_metadata::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "NumberOfLabels" => {
                                builder = builder.set_number_of_labels(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "NumberOfTrainedDocuments" => {
                                builder = builder.set_number_of_trained_documents(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "NumberOfTestDocuments" => {
                                builder = builder.set_number_of_test_documents(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EvaluationMetrics" => {
                                builder = builder.set_evaluation_metrics(
                                    crate::json_deser::deser_structure_crate_model_classifier_evaluation_metrics(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_input_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerInputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_input_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DataFormat" => {
                                builder = builder.set_data_format(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::EntityRecognizerDataFormat::from(
                                                u.as_ref(),
                                            )
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "EntityTypes" => {
                                builder = builder.set_entity_types(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_entity_types_list(tokens)?
                                );
                            }
                            "Documents" => {
                                builder = builder.set_documents(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_documents(tokens)?
                                );
                            }
                            "Annotations" => {
                                builder = builder.set_annotations(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_annotations(tokens)?
                                );
                            }
                            "EntityList" => {
                                builder = builder.set_entity_list(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_entity_list(tokens)?
                                );
                            }
                            "AugmentedManifests" => {
                                builder = builder.set_augmented_manifests(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_entity_recognizer_augmented_manifests_list(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_metadata<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerMetadata>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_metadata::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "NumberOfTrainedDocuments" => {
                                builder = builder.set_number_of_trained_documents(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "NumberOfTestDocuments" => {
                                builder = builder.set_number_of_test_documents(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EvaluationMetrics" => {
                                builder = builder.set_evaluation_metrics(
                                    crate::json_deser::deser_structure_crate_model_entity_recognizer_evaluation_metrics(tokens)?
                                );
                            }
                            "EntityTypes" => {
                                builder = builder.set_entity_types(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_entity_recognizer_metadata_entity_types_list(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_target_event_types<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<std::string::String>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_pii_output_data_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::PiiOutputDataConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::pii_output_data_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KmsKeyId" => {
                                builder = builder.set_kms_key_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_redaction_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::RedactionConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::redaction_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "PiiEntityTypes" => {
                                builder = builder.set_pii_entity_types(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_pii_entity_types(tokens)?
                                );
                            }
                            "MaskMode" => {
                                builder = builder.set_mask_mode(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::PiiEntitiesDetectionMaskMode::from(
                                                u.as_ref(),
                                            )
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "MaskCharacter" => {
                                builder = builder.set_mask_character(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_dominant_language<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DominantLanguage>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::dominant_language::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "LanguageCode" => {
                                builder = builder.set_language_code(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::Entity>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::EntityType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Text" => {
                                builder = builder.set_text(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "BlockReferences" => {
                                builder = builder.set_block_references(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_block_references(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_block<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::Block>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::block::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Id" => {
                                builder = builder.set_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BlockType" => {
                                builder = builder.set_block_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::BlockType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "Text" => {
                                builder = builder.set_text(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Geometry" => {
                                builder = builder.set_geometry(
                                    crate::json_deser::deser_structure_crate_model_geometry(
                                        tokens,
                                    )?,
                                );
                            }
                            "Relationships" => {
                                builder = builder.set_relationships(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_relationships(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_key_phrase<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::KeyPhrase>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::key_phrase::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Text" => {
                                builder = builder.set_text(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_pii_entity<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::PiiEntity>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::pii_entity::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::PiiEntityType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_syntax_token<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::SyntaxToken>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::syntax_token::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "TokenId" => {
                                builder = builder.set_token_id(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Text" => {
                                builder = builder.set_text(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "PartOfSpeech" => {
                                builder = builder.set_part_of_speech(
                                    crate::json_deser::deser_structure_crate_model_part_of_speech_tag(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_targeted_sentiment_entity<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::TargetedSentimentEntity>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::targeted_sentiment_entity::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DescriptiveMentionIndex" => {
                                builder = builder.set_descriptive_mention_index(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_descriptive_mention_indices(tokens)?
                                );
                            }
                            "Mentions" => {
                                builder = builder.set_mentions(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_mentions(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_classifier_summary<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentClassifierSummary>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_classifier_summary::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DocumentClassifierName" => {
                                builder = builder.set_document_classifier_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "NumberOfVersions" => {
                                builder = builder.set_number_of_versions(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "LatestVersionCreatedAt" => {
                                builder = builder.set_latest_version_created_at(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "LatestVersionName" => {
                                builder = builder.set_latest_version_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "LatestVersionStatus" => {
                                builder = builder.set_latest_version_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::ModelStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_summary<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerSummary>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_summary::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "RecognizerName" => {
                                builder = builder.set_recognizer_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "NumberOfVersions" => {
                                builder = builder.set_number_of_versions(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "LatestVersionCreatedAt" => {
                                builder = builder.set_latest_version_created_at(
                                    aws_smithy_json::deserialize::token::expect_timestamp_or_null(
                                        tokens.next(),
                                        aws_smithy_types::date_time::Format::EpochSeconds,
                                    )?,
                                );
                            }
                            "LatestVersionName" => {
                                builder = builder.set_latest_version_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "LatestVersionStatus" => {
                                builder = builder.set_latest_version_status(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::ModelStatus::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_tag<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::Tag>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::tag::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Key" => {
                                builder = builder.set_key(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Value" => {
                                builder = builder.set_value(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_extracted_characters_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::ExtractedCharactersListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::extracted_characters_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Page" => {
                                builder = builder.set_page(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "Count" => {
                                builder = builder.set_count(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_document_reader_config<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::DocumentReaderConfig>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::document_reader_config::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "DocumentReadAction" => {
                                builder = builder.set_document_read_action(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::DocumentReadAction::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "DocumentReadMode" => {
                                builder = builder.set_document_read_mode(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::DocumentReadMode::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "FeatureTypes" => {
                                builder = builder.set_feature_types(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_document_read_feature_types(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_security_group_ids<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<std::string::String>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_subnets<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<std::string::String>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_document_classifier_augmented_manifests_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::AugmentedManifestsListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_augmented_manifests_list_item(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_classifier_evaluation_metrics<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::ClassifierEvaluationMetrics>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::classifier_evaluation_metrics::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Accuracy" => {
                                builder = builder.set_accuracy(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "Precision" => {
                                builder = builder.set_precision(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "Recall" => {
                                builder = builder.set_recall(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "F1Score" => {
                                builder = builder.set_f1_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "MicroPrecision" => {
                                builder = builder.set_micro_precision(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "MicroRecall" => {
                                builder = builder.set_micro_recall(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "MicroF1Score" => {
                                builder = builder.set_micro_f1_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "HammingLoss" => {
                                builder = builder.set_hamming_loss(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entity_types_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntityTypesListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entity_types_list_item(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_documents<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerDocuments>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_documents::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "TestS3Uri" => {
                                builder = builder.set_test_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "InputFormat" => {
                                builder = builder.set_input_format(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::InputFormat::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_annotations<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerAnnotations>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_annotations::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "TestS3Uri" => {
                                builder = builder.set_test_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_entity_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerEntityList>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_recognizer_entity_list::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entity_recognizer_augmented_manifests_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::AugmentedManifestsListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_augmented_manifests_list_item(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_evaluation_metrics<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerEvaluationMetrics>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::entity_recognizer_evaluation_metrics::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Precision" => {
                                builder = builder.set_precision(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "Recall" => {
                                builder = builder.set_recall(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "F1Score" => {
                                builder = builder.set_f1_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_entity_recognizer_metadata_entity_types_list<
    'a,
    I,
>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::EntityRecognizerMetadataEntityTypesListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_entity_recognizer_metadata_entity_types_list_item(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_pii_entity_types<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::PiiEntityType>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| {
                            s.to_unescaped()
                                .map(|u| crate::model::PiiEntityType::from(u.as_ref()))
                        })
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_block_references<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::BlockReference>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_block_reference(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_geometry<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::Geometry>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::geometry::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "BoundingBox" => {
                                builder = builder.set_bounding_box(
                                    crate::json_deser::deser_structure_crate_model_bounding_box(
                                        tokens,
                                    )?,
                                );
                            }
                            "Polygon" => {
                                builder = builder.set_polygon(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_polygon(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_relationships<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::RelationshipsListItem>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_relationships_list_item(
                                tokens,
                            )?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_part_of_speech_tag<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::PartOfSpeechTag>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::part_of_speech_tag::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Tag" => {
                                builder = builder.set_tag(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::PartOfSpeechTagType::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_descriptive_mention_indices<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<std::vec::Vec<i32>>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_number_or_null(
                            tokens.next(),
                        )?
                        .map(i32::try_from)
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_mentions<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::TargetedSentimentMention>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_targeted_sentiment_mention(tokens)?
                        ;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_document_read_feature_types<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::DocumentReadFeatureTypes>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| {
                            s.to_unescaped()
                                .map(|u| crate::model::DocumentReadFeatureTypes::from(u.as_ref()))
                        })
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_augmented_manifests_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::AugmentedManifestsListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::augmented_manifests_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "S3Uri" => {
                                builder = builder.set_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Split" => {
                                builder = builder.set_split(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::Split::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "AttributeNames" => {
                                builder = builder.set_attribute_names(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_attribute_names_list(tokens)?
                                );
                            }
                            "AnnotationDataS3Uri" => {
                                builder = builder.set_annotation_data_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SourceDocumentsS3Uri" => {
                                builder = builder.set_source_documents_s3_uri(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "DocumentType" => {
                                builder = builder.set_document_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?.map(|s|
                                        s.to_unescaped().map(|u|
                                            crate::model::AugmentedManifestsDocumentTypeFormat::from(u.as_ref())
                                        )
                                    ).transpose()?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_types_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityTypesListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_types_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_recognizer_metadata_entity_types_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityRecognizerMetadataEntityTypesListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder =
                crate::model::entity_recognizer_metadata_entity_types_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "EvaluationMetrics" => {
                                builder = builder.set_evaluation_metrics(
                                    crate::json_deser::deser_structure_crate_model_entity_types_evaluation_metrics(tokens)?
                                );
                            }
                            "NumberOfTrainMentions" => {
                                builder = builder.set_number_of_train_mentions(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_block_reference<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::BlockReference>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::block_reference::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "BlockId" => {
                                builder = builder.set_block_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "ChildBlocks" => {
                                builder = builder.set_child_blocks(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_list_of_child_blocks(tokens)?
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_bounding_box<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::BoundingBox>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::bounding_box::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Height" => {
                                builder = builder.set_height(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Left" => {
                                builder = builder.set_left(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Top" => {
                                builder = builder.set_top(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Width" => {
                                builder = builder.set_width(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_polygon<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::Point>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = crate::json_deser::deser_structure_crate_model_point(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_relationships_list_item<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::RelationshipsListItem>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::relationships_list_item::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Ids" => {
                                builder = builder.set_ids(
                                    crate::json_deser::deser_list_com_amazonaws_comprehend_string_list(tokens)?
                                );
                            }
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::RelationshipType::from(u.as_ref())
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_targeted_sentiment_mention<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::TargetedSentimentMention>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::targeted_sentiment_mention::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Score" => {
                                builder = builder.set_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "GroupScore" => {
                                builder = builder.set_group_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Text" => {
                                builder = builder.set_text(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Type" => {
                                builder = builder.set_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::model::TargetedSentimentEntityType::from(
                                                u.as_ref(),
                                            )
                                        })
                                    })
                                    .transpose()?,
                                );
                            }
                            "MentionSentiment" => {
                                builder = builder.set_mention_sentiment(
                                    crate::json_deser::deser_structure_crate_model_mention_sentiment(tokens)?
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_attribute_names_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<std::string::String>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_entity_types_evaluation_metrics<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::EntityTypesEvaluationMetrics>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::entity_types_evaluation_metrics::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Precision" => {
                                builder = builder.set_precision(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "Recall" => {
                                builder = builder.set_recall(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            "F1Score" => {
                                builder = builder.set_f1_score(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f64_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_list_of_child_blocks<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<crate::model::ChildBlock>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value =
                            crate::json_deser::deser_structure_crate_model_child_block(tokens)?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_point<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::Point>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::point::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "X" => {
                                builder = builder.set_x(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            "Y" => {
                                builder = builder.set_y(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|v| v.to_f32_lossy()),
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

#[allow(non_snake_case)]
pub(crate) fn deser_list_com_amazonaws_comprehend_string_list<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<std::vec::Vec<std::string::String>>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartArray { .. }) => {
            let mut items = Vec::new();
            loop {
                match tokens.peek() {
                    Some(Ok(aws_smithy_json::deserialize::Token::EndArray { .. })) => {
                        tokens.next().transpose().unwrap();
                        break;
                    }
                    _ => {
                        let value = aws_smithy_json::deserialize::token::expect_string_or_null(
                            tokens.next(),
                        )?
                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                        .transpose()?;
                        if let Some(value) = value {
                            items.push(value);
                        }
                    }
                }
            }
            Ok(Some(items))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start array or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_mention_sentiment<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::MentionSentiment>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::mention_sentiment::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "Sentiment" => {
                                builder = builder.set_sentiment(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::SentimentType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            "SentimentScore" => {
                                builder = builder.set_sentiment_score(
                                    crate::json_deser::deser_structure_crate_model_sentiment_score(
                                        tokens,
                                    )?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

pub(crate) fn deser_structure_crate_model_child_block<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::model::ChildBlock>, aws_smithy_json::deserialize::error::DeserializeError>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::child_block::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "ChildBlockId" => {
                                builder = builder.set_child_block_id(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "BeginOffset" => {
                                builder = builder.set_begin_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "EndOffset" => {
                                builder = builder.set_end_offset(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}