void LoggingDeviceExecute(const TFE_Op* original_op, int* num_outputs,
                          TFE_TensorHandle** outputs, TF_Status* s,
                          void* device_info) {
  const char* requested_placement = TFE_OpGetDevice(original_op, s);
  if (TF_GetCode(s) != TF_OK) return;

  LoggingDevice* dev = reinterpret_cast<LoggingDevice*>(device_info);
  if (dev->strict_scope_placement && *requested_placement == '\0') {