pub fn build_transport(&mut self, build_transport: bool) -> &mut Self {
        self.build_transport = build_transport;
        self
    }
Enable transport code to be generated, this requires `tonic`'s `transport`
feature.

This allows codegen level control of generating the transport code and
is a work around when other crates in a workspace enable this feature.
tonic-build/src/code_gen.rs