code: def wait_impl(self, cpid, *, exitcode):
      support.wait_process(cpid, exitcode=exitcode)
  
file_path: cpython/Lib/test/fork_wait.py
imports: import os, time, unittest
  import threading
  from test import support
  from test.support import threading_helper
  import warnings
label_desc: Use image node_id 4 for calling the ForkWait obj's underlying member method code with example usage: obj.wait_impl(cpid) without return types