class_docstr: A grouping of Timers.
code: def __init__(self):
      self._timers = collections.defaultdict(TimerStat)
      self._enabled = True
  
imports: import collections
  from contextlib import closing, contextmanager
  import logging
  import numpy
  import socket
  import time
label_desc: Use image node_id 1 to create a new TimerCollection object  with example: obj = TimerCollection()