// string is empty, no mutation has occurred. Otherwise the string is a
  // description of the mutation suitable for returning to the user.
  //
  // Sessions are added to this map in TF_NewSession, and removed in
  // TF_DeleteSession.
  // TF_Graph may only / must be deleted when
  //   sessions.size() == 0 && delete_requested == true
  //
  // TODO(b/74949947): mutations currently trigger a warning instead of a bad

  TF_SessionOptions* opts = TF_NewSessionOptions();
  TF_Session* sess = TF_NewSession(graph.get(), opts, s);
  TF_DeleteSessionOptions(opts);

  const std::string gpu_device_name = GPUDeviceName(sess);
  TF_DeleteSession(sess, s);
  CHECK_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);
  return gpu_device_name;
}

TEST(CAPI, Version) { EXPECT_STRNE("", TF_Version()); }

TEST(CAPI, Status) {
  TF_Status* s = TF_NewStatus();

void CSession::CloseAndDelete(TF_Status* s) {
  DeleteInputValues();
  ResetOutputValues();
  if (session_ != nullptr) {
    TF_CloseSession(session_, s);
    EXPECT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);
    TF_DeleteSession(session_, s);
    session_ = nullptr;
  }
}

void CSession::DeleteInputValues() {
  for (size_t i = 0; i < input_values_.size(); ++i) {
    TF_DeleteTensor(input_values_[i]);
  }

  return session;
#endif  // defined(IS_MOBILE_PLATFORM) || defined(IS_SLIM_BUILD)
}

void TF_CloseSession(TF_Session* s, TF_Status* status) {
  status->status = s->session->Close();
}

void TF_DeleteSession(TF_Session* s, TF_Status* status) {
  status->status = absl::OkStatus();
  if (s == nullptr) return;
  TF_Graph* const graph = s->graph;
  if (graph != nullptr) {
    graph->mu.lock();