pub(crate) fn de_savings_plans_purchase_analysis_details<'a, I>(
    tokens: &mut ::std::iter::Peekable<I>,
) -> ::std::result::Result<Option<crate::types::SavingsPlansPurchaseAnalysisDetails>, ::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::SavingsPlansPurchaseAnalysisDetailsBuilder::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() {
                        "CurrencyCode" => {
                            builder = builder.set_currency_code(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "LookbackPeriodInHours" => {
                            builder = builder.set_lookback_period_in_hours(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "CurrentAverageCoverage" => {
                            builder = builder.set_current_average_coverage(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "CurrentAverageHourlyOnDemandSpend" => {
                            builder = builder.set_current_average_hourly_on_demand_spend(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "CurrentMaximumHourlyOnDemandSpend" => {
                            builder = builder.set_current_maximum_hourly_on_demand_spend(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "CurrentMinimumHourlyOnDemandSpend" => {
                            builder = builder.set_current_minimum_hourly_on_demand_spend(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "CurrentOnDemandSpend" => {
                            builder = builder.set_current_on_demand_spend(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "ExistingHourlyCommitment" => {
                            builder = builder.set_existing_hourly_commitment(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "HourlyCommitmentToPurchase" => {
                            builder = builder.set_hourly_commitment_to_purchase(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedAverageCoverage" => {
                            builder = builder.set_estimated_average_coverage(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedAverageUtilization" => {
                            builder = builder.set_estimated_average_utilization(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedMonthlySavingsAmount" => {
                            builder = builder.set_estimated_monthly_savings_amount(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedOnDemandCost" => {
                            builder = builder.set_estimated_on_demand_cost(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedOnDemandCostWithCurrentCommitment" => {
                            builder = builder.set_estimated_on_demand_cost_with_current_commitment(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedROI" => {
                            builder = builder.set_estimated_roi(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedSavingsAmount" => {
                            builder = builder.set_estimated_savings_amount(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedSavingsPercentage" => {
                            builder = builder.set_estimated_savings_percentage(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "EstimatedCommitmentCost" => {
                            builder = builder.set_estimated_commitment_cost(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "LatestUsageTimestamp" => {
                            builder = builder.set_latest_usage_timestamp(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "UpfrontCost" => {
                            builder = builder.set_upfront_cost(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "AdditionalMetadata" => {
                            builder = builder.set_additional_metadata(
                                ::aws_smithy_json::deserialize::token::expect_string_or_null(tokens.next())?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                            );
                        }
                        "MetricsOverLookbackPeriod" => {
                            builder = builder.set_metrics_over_lookback_period(
                                crate::protocol_serde::shape_metrics_over_lookback_period::de_metrics_over_lookback_period(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",
        )),
    }
}