code: def _stop(state):
      if state.cleanup_cb:
          state.cleanup_cb(state)
  
imports: import logging
  import os
  import signal
  import time
  from guild import lock
  from guild import op_util
  from guild import util
  from guild import var
label_desc: Use image node_id 30 for calling a global function with example usage: _stop(state) without return types