# aws-smithy-runtime-api APIs needed to configure and customize the Smithy generated code. Most users will not need to use this crate directly as the most frequently used APIs are re-exported in the generated clients. However, this crate will be useful for anyone writing a library for others to use with their generated clients. If you're needing to depend on this and you're not writing a library for Smithy generated clients, then please file an issue on [smithy-rs](https://github.com/smithy-lang/smithy-rs) as we likely missed re-exporting one of the APIs. This crate is part of the [AWS SDK for Rust](https://awslabs.github.io/aws-sdk-rust/) and the [smithy-rs](https://github.com/smithy-lang/smithy-rs) code generator. In most cases, it should not be used directly.