@ExperimentalApi("https://github.com/grpc/grpc-java/issues/4477")
  public static <T extends Message> Metadata.BinaryMarshaller<T> metadataMarshaller(T instance) {
    return ProtoLiteUtils.metadataMarshaller(instance);
  }
@ ExperimentalApi ( "https://github.com/grpc/grpc-java/issues/4477" ) public static < T extends Message > Metadata . BinaryMarshaller < T > metadataMarshaller ( T instance ) { return ProtoLiteUtils . metadataMarshaller ( instance ) ; }
Produce a metadata marshaller for a protobuf type.

@since 1.13.0