docstr: Decrement the refcount of a resource, and delete it if it hits 0
docstr_tok: ["Decrement","the","refcount","of","a","resource",",","and","delete","it","if","it","hits","0"]
code: def maybe_unlink(self, name, rtype):
      """Decrement the refcount of a resource, and delete it if it hits 0"""
      self.ensure_running()
      self._send("MAYBE_UNLINK", name, rtype)
  
file_path: catboost/contrib/python/joblib/joblib/externals/loky/backend/resource_tracker.py
imports: import os
  import shutil
  import sys
  import signal
  import warnings
  import threading
  from _multiprocessing import sem_unlink
  from multiprocessing import util
  from .None import spawn
label_desc: Use image node_id 7 for calling the ResourceTracker obj's underlying member method code with example usage: obj.maybe_unlink(name, rtype) without return types