code: def __str__(self):
      return f"n={self.count}, sum={self.total_time:.4f}, mean={self.mean:.4f}, max={self.max_time:.4f}"
  
imports: import hashlib
  import inspect
  import logging
  import time
  import typing
  from functools import wraps
label_desc: Use image node_id 6 for calling the _TimerItem obj's underlying member method code with example usage: obj.__str__() and returns: str, self, str, self, str, self, str, self