code: def colllect_normalizer_tests(base_dir):
      for f_name in os.listdir(base_dir):
          if f_name.endswith(".py"):
              path = os.path.join(base_dir, f_name)
              yield NormalizerIssueCase(path)
  
imports: import re
  import tempfile
  import shutil
  import logging
  import sys
  import os
  import pytest
  import yatest.common
  import parso
  from parso import cache
  from parso.utils import parse_version_string
label_desc: Use image node_id 4 for calling a global function with example usage: colllect_normalizer_tests(base_dir) without return types