chore(codegen): support JMESPath MultiSelect List and Flatten in OperationContextParams#6905

trivikr merged 1 commit intoaws:mainaws/aws-sdk-js-v3:mainfrom

trivikr:op-context-params-multi-select-flattentrivikr/aws-sdk-js-v3:op-context-params-multi-select-flattenCopy head branch name to clipboard