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// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
pub(crate) fn de_cluster<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<Option<crate::types::Cluster>, 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::types::builders::ClusterBuilder::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() {
                            "ClusterName" => {
                                builder = builder.set_cluster_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "Description" => {
                                builder = builder.set_description(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "ClusterArn" => {
                                builder = builder.set_cluster_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "TotalNodes" => {
                                builder = builder.set_total_nodes(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "ActiveNodes" => {
                                builder = builder.set_active_nodes(
                                    aws_smithy_json::deserialize::token::expect_number_or_null(
                                        tokens.next(),
                                    )?
                                    .map(i32::try_from)
                                    .transpose()?,
                                );
                            }
                            "NodeType" => {
                                builder = builder.set_node_type(
                                    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| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "ClusterDiscoveryEndpoint" => {
                                builder = builder.set_cluster_discovery_endpoint(
                                    crate::protocol_serde::shape_endpoint::de_endpoint(tokens)?,
                                );
                            }
                            "NodeIdsToRemove" => {
                                builder = builder.set_node_ids_to_remove(
                                    crate::protocol_serde::shape_node_identifier_list::de_node_identifier_list(tokens)?
                                );
                            }
                            "Nodes" => {
                                builder = builder.set_nodes(
                                    crate::protocol_serde::shape_node_list::de_node_list(tokens)?,
                                );
                            }
                            "PreferredMaintenanceWindow" => {
                                builder = builder.set_preferred_maintenance_window(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "NotificationConfiguration" => {
                                builder = builder.set_notification_configuration(
                                    crate::protocol_serde::shape_notification_configuration::de_notification_configuration(tokens)?
                                );
                            }
                            "SubnetGroup" => {
                                builder = builder.set_subnet_group(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "SecurityGroups" => {
                                builder = builder.set_security_groups(
                                    crate::protocol_serde::shape_security_group_membership_list::de_security_group_membership_list(tokens)?
                                );
                            }
                            "IamRoleArn" => {
                                builder = builder.set_iam_role_arn(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "ParameterGroup" => {
                                builder = builder.set_parameter_group(
                                    crate::protocol_serde::shape_parameter_group_status::de_parameter_group_status(tokens)?
                                );
                            }
                            "SSEDescription" => {
                                builder = builder.set_sse_description(
                                    crate::protocol_serde::shape_sse_description::de_sse_description(tokens)?
                                );
                            }
                            "ClusterEndpointEncryptionType" => {
                                builder = builder.set_cluster_endpoint_encryption_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped().map(|u| {
                                            crate::types::ClusterEndpointEncryptionType::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",
            ),
        ),
    }
}