class_docstr: An error happened within each worker.
class_docstr_tok: ["An","error","happened","within","each","worker","."]
docstr: Return worker ID related to a process causes this error.
docstr_tok: ["Return","worker","ID","related","to","a","process","causes","this","error","."]
code: def worker_id(self):
      """Return worker ID related to a process causes this error."""
      return self._worker_id
  
file_path: espnet/espnet/distributed/pytorch_backend/launch.py
imports: import multiprocessing
  import os
  import signal
  import socket
  import time
label_desc: Use image node_id 4 for calling the WorkerError obj's underlying member method code with example usage: obj.worker_id() and returns: self