ForwardOperation*);
absl::Status SetAttrFunction(AbstractOperation*, const char* attr_name,
                             const AbstractOperation* value, ForwardOperation*);
absl::Status SetAttrFunctionName(AbstractOperation*, const char* attr_name,
                                 const char* value, size_t length,
                                 ForwardOperation*);

  virtual absl::Status SetAttrFunction(const char* attr_name,
                                       const AbstractOperation* value) = 0;
  virtual absl::Status SetAttrFunctionName(const char* attr_name,
                                           const char* value,
                                           size_t length) = 0;
  virtual absl::Status SetAttrTensor(const char* attr_name,

      "SetAttrFunction has not been implemented yet.");
}
absl::Status SetAttrFunctionName(AbstractOperation* op_, const char* attr_name,
                                 const char* value, size_t length,
                                 ForwardOperation* forward_op_) {
  return absl::UnimplementedError(
      "SetAttrFunctionName has not been implemented "
      "yet.");
}

                               const AbstractOperation* value) override {
    return tensorflow::errors::Unimplemented(
        "SetAttrFunction has not been implemented yet.");
  }
  absl::Status SetAttrFunctionName(const char* attr_name, const char* value,
                                   size_t length) override {
    tensorflow::NameAttrList func_name;
    func_name.set_name(string(value, value + length));

  }
}

void TFE_OpSetAttrFunctionName(TFE_Op* op, const char* attr_name,
                               const char* data, size_t length) {
  auto s = tensorflow::unwrap(op)->SetAttrFunctionName(attr_name, data, length);
  if (!s.ok()) {
    LOG(WARNING) << "Unable to set attribute: " << attr_name;
  }
}

void TFE_OpSetAttrTensor(TFE_Op* op, const char* attr_name, TF_Tensor* tensor,