aws-sigv4 0.55.3

allowed_external_types = [
    "http::header::map::HeaderMap",
    "http::header::name::HeaderName",
    "http::header::value::HeaderValue",
    "http::method::Method",
    "http::request::Request",
    "http::uri::Uri",

    # TODO(https://github.com/awslabs/smithy-rs/issues/1193): Once tooling permits it, only allow the following types in the `event-stream` feature
    "aws_smithy_eventstream::frame::Message",
]