code: def doctests():
      # type: () -> unittest.TestSuite
      import doctest
  
      return doctest.DocTestSuite()
  
imports: import array
  import asyncio
  import atexit
  from inspect import getfullargspec
  import os
  import re
  import typing
  import zlib
  from typing import Any, Optional, Dict, Mapping, List, Tuple, Match, Callable, Type, Sequence
label_desc: Use image node_id 9 for calling a global function with example usage: doctests() and returns: doctest