}

  bool IsStatefulRandomOp(absl::string_view op_name) const {
    return op_name == "RandomUniform" || op_name == "RandomShuffle" ||
           op_name == "RandomUniformInt" || op_name == "RandomStandardNormal" ||
           op_name == "TruncatedNormal" || op_name == "Multinomial";
  }

  bool OpProducesOrConsumesVariant(const Node& node) const {
    auto is_variant = [](DataType dtype) { return dtype == DT_VARIANT; };