TF_Buffer* TF_NewBuffer() { return new TF_Buffer{nullptr, 0, nullptr}; }

TF_Buffer* TF_NewBufferFromString(const void* proto, size_t proto_len) {
  void* copy = tensorflow::port::Malloc(proto_len);
  std::memcpy(copy, proto, proto_len);

  TF_Buffer* buf = new TF_Buffer;
  buf->data = copy;
  buf->length = proto_len;
  buf->data_deallocator = [](void* data, size_t length) {
    tensorflow::port::Free(data);
  };
  return buf;
}

  handle_data.SerializeToString(&result);
  return result;
}

void SetHandleShapeAndType(TF_Graph* graph, TF_Output output, const void* proto,
                           size_t proto_len, TF_Status* status) {
  TF_SetHandleShapeAndType(graph, output, proto, proto_len, status);
}

void AddWhileInputHack(TF_Graph* graph, TF_Output new_src, TF_Operation* dst,
                       TF_Status* status) {

// passing in read-only, input protobufs.
TF_CAPI_EXPORT extern TF_Buffer* TF_NewBufferFromString(const void* proto,
                                                        size_t proto_len);

// Useful for passing *out* a protobuf.
TF_CAPI_EXPORT extern TF_Buffer* TF_NewBuffer(void);

TF_CAPI_EXPORT extern void TF_DeleteBuffer(TF_Buffer*);

// because I couldn't get SWIG to work otherwise.
void SetHandleShapeAndType(TF_Graph* graph, TF_Output output, const void* proto,
                           size_t proto_len, TF_Status* status);

// This method is used to add a new input edge to 'dst', which must be a While
// op. The While op's "T" attribute must have already been updated to include