allowed_external_types = [
    "aws_smithy_types::*",
    "bytes::buf::buf_impl::Buf",
    "bytes::buf::buf_mut::BufMut",
    "bytes::bytes::Bytes",

    # TODO(https://github.com/awslabs/smithy-rs/issues/1193): Once tooling permits it, only allow the following types in the `derive-arbitrary` feature
    "arbitrary::Arbitrary",
]