absl::Status SetAttrTypeList(AbstractOperation*, const char* attr_name,
                             const DataType* values, int num_values,
                             ForwardOperation*);
absl::Status SetAttrBoolList(AbstractOperation*, const char* attr_name,
                             const unsigned char* values, int num_values,
                             ForwardOperation*);

  virtual absl::Status SetAttrTypeList(const char* attr_name,
                                       const DataType* values,
                                       int num_values) = 0;
  virtual absl::Status SetAttrBoolList(const char* attr_name,
                                       const unsigned char* values,
                                       int num_values) = 0;
  virtual absl::Status SetAttrShapeList(const char* attr_name,

  forward_op_->attrs.Set(attr_name,
                         gtl::ArraySlice<const DataType>(values, num_values));
  return op_->SetAttrTypeList(attr_name, values, num_values);
}
absl::Status SetAttrBoolList(AbstractOperation* op_, const char* attr_name,
                             const unsigned char* values, int num_values,
                             ForwardOperation* forward_op_) {

    op_->node_builder.Attr(attr_name,
                           ArraySlice<const DataType>(values, num_values));
    return absl::OkStatus();
  }
  absl::Status SetAttrBoolList(const char* attr_name,
                               const unsigned char* values,
                               int num_values) override {
    std::unique_ptr<bool[]> b(new bool[num_values]);

  }
}

void TFE_OpSetAttrBoolList(TFE_Op* op, const char* attr_name,
                           const unsigned char* values, int num_values) {
  auto s =
      tensorflow::unwrap(op)->SetAttrBoolList(attr_name, values, num_values);
  if (!s.ok()) {
    LOG(WARNING) << "Unable to set attribute: " << attr_name;
  }
}

void TFE_OpSetAttrShapeList(TFE_Op* op, const char* attr_name,