// Populate inputs.
  std::vector<DataType> input_dtypes;
  TF_RETURN_IF_ERROR(GetNodeAttr(call_node->attrs(), "Tinputs", &input_dtypes));
  std::vector<NodeDefBuilder::NodeOut> inputs(input_dtypes.size());
  for (auto e : call_node->in_edges()) {
    if (e->IsControlEdge()) {
      continue;
    }

    const int input_dtypes_size = input_dtypes.size();

            }});

            // Generate: int getFactoryId() { return <factory-id-field> }
            publicMethod("getFactoryId", getMethodDescriptor(INT_TYPE), methodVisitor -> new MethodVisitorScope(methodVisitor) {{
                _GETSTATIC(generatedType, FACTORY_ID_FIELD, INT_TYPE);
                _IRETURN();
            }});
        }

        @Override