message="Fix exclusively setting the credentials provider at operation config-override time. It's now possible to set the credentials when an operation is sent (via `.config_override()`), rather than at client-creation time."
references=["smithy-rs#3156","aws-sdk-rust#901"]
meta={"breaking"=false,"tada"=false,"bug"=true}
author="ysaito1001"
[[smithy-rs]]
message="""Enable conversion from `BuildError` into `SdkError` & `<service>::Error`. This allows customers to write the following code: