code: def is_prerelease(self) -> bool:
      return self.dev is not None or self.pre is not None
  
imports: import collections
  import itertools
  import re
  from typing import Callable, Optional, SupportsInt, Tuple, Union
label_desc: Use image node_id 12 for calling the Version obj's underlying member method code with example usage: obj.is_prerelease() and returns: unknown