TF_VALIDATE_NOT_NULL(SP_StreamExecutor, se, unified_memory_deallocate);
  }
  TF_VALIDATE_NOT_NULL(SP_StreamExecutor, se, device_memory_usage);
  TF_VALIDATE_NOT_NULL(SP_StreamExecutor, se, create_stream);
  TF_VALIDATE_NOT_NULL(SP_StreamExecutor, se, destroy_stream);
  TF_VALIDATE_NOT_NULL(SP_StreamExecutor, se, create_stream_dependency);