pub(crate) fn de_file_cache_lustre_configuration<'a, I>(
    tokens: &mut ::std::iter::Peekable<I>,
) -> Result<Option<crate::types::FileCacheLustreConfiguration>, ::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::FileCacheLustreConfigurationBuilder::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() {
                            "PerUnitStorageThroughput" => {
                                builder = builder.set_per_unit_storage_throughput(
                                    ::aws_smithy_json::deserialize::token::expect_number_or_null(tokens.next())?
                                        .map(i32::try_from)
                                        .transpose()?,
                                );
                            }
                            "DeploymentType" => {
                                builder = builder.set_deployment_type(
                                    ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                        .map(|s| s.to_unescaped().map(|u| crate::types::FileCacheLustreDeploymentType::from(u.as_ref())))
                                        .transpose()?,
                                );
                            }
                            "MountName" => {
                                builder = builder.set_mount_name(
                                    ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                        .transpose()?,
                                );
                            }
                            "WeeklyMaintenanceStartTime" => {
                                builder = builder.set_weekly_maintenance_start_time(
                                    ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                        .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                        .transpose()?,
                                );
                            }
                            "MetadataConfiguration" => {
                                builder = builder.set_metadata_configuration(
                                    crate::protocol_serde::shape_file_cache_lustre_metadata_configuration::de_file_cache_lustre_metadata_configuration(tokens)?
                                );
                            }
                            "LogConfiguration" => {
                                builder = builder.set_log_configuration(
                                    crate::protocol_serde::shape_lustre_log_configuration::de_lustre_log_configuration(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",
        )),
    }
}