How to add Channel with composite credential in rust Tonic like the gRPC c++ library

In gRPC C++ library, we can create a channel which based on a composite credentials. For example:

auto call_credentials = grpc::MetadataCredentialsFromPlugin(std::unique_ptr<grpc::MetadataCredentialsPlugin>(
                    new SomeCallCredential()));
auto channel_credentials = grpc::SslCredentials(grpc::SslCredentialsOptions());
auto credentials = grpc::CompositeChannelCredentials(channel_credentials,
                                                             call_creds);

In rust Tonic library, do we have an equivalent method to create a channel with composite credentials?

Reference of C++ implementation:
https://grpc.io/docs/guides/auth/