code: public static <ReqT, RespT> ServerCallHandler<ReqT, RespT> asyncBidiStreamingCall(
        BidiStreamingMethod<ReqT, RespT> method) {
      return asyncStreamingRequestCall(method);
    }
docs: Creates a {@link ServerCallHandler} for a bidi streaming method of the service.
  
  @param method an adaptor to the actual method on the service implementation.