private org.nd4j.shade.protobuf.RepeatedFieldBuilderV3<
          org.nd4j.ir.MapperNamespace.TransformerArgs, org.nd4j.ir.MapperNamespace.TransformerArgs.Builder, org.nd4j.ir.MapperNamespace.TransformerArgsOrBuilder> 
          getTransformerArgsFieldBuilder() {
        if (transformerArgsBuilder_ == null) {
          transformerArgsBuilder_ = new org.nd4j.shade.protobuf.RepeatedFieldBuilderV3<