code: def epoch(self):
      # type: () -> int
      _epoch = self._version.epoch  # type: int
      return _epoch
  
imports: from __future__ import absolute_import, division, print_function
  import collections
  import itertools
  import re
  import warnings
  from ._structures import Infinity, NegativeInfinity
  from ._typing import TYPE_CHECKING
label_desc: Use image node_id 4 for calling the Version obj's underlying member method code with example usage: obj.epoch() and returns: _epoch