code: def epoch(self) -> int:
      _epoch: int = self._version.epoch
      return _epoch
  
imports: import collections
  import itertools
  import re
  import warnings
  from typing import Callable, Iterator, List, Optional, SupportsInt, Tuple, Union
  from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType
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