Proc macros for `aws-smithy-runtime-api`. See [aws-smithy-runtime-api](https://crates.io/crates/aws-smithy-runtime-api) for more information.
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.