code: def is_in_paddle_launch_dist() -> bool:
      """
      判断是否处于 ``python -m paddle.distributed.launch`` 方法启动的 **paddle** 分布式进程中
      """
      return FASTNLP_BACKEND_LAUNCH in os.environ
  
file_path: fastNLP/fastNLP/core/utils/paddle_utils.py
imports: import os
  import re
  from typing import Any, Optional, Union
  from fastNLP.envs.imports import _NEED_IMPORT_PADDLE
  from fastNLP.envs import FASTNLP_DISTRIBUTED_CHECK, FASTNLP_BACKEND_LAUNCH, USER_CUDA_VISIBLE_DEVICES
  from .utils import apply_to_collection
label_desc: Use image node_id 8 for calling a global function with example usage: is_in_paddle_launch_dist() and returns: unknown