code: def test_infer_tz_compat(infer_setup):
      eastern, _, start, end, start_naive, end_naive = infer_setup
  
      assert (
          timezones.infer_tzinfo(start, end)
          is conversion.localize_pydatetime(start_naive, eastern).tzinfo
      )
      assert (
          timezones.infer_tzinfo(start, None)
          is conversion.localize_pydatetime(start_naive, eastern).tzinfo
      )
      assert (
          timezones.infer_tzinfo(None, end)
          is conversion.localize_pydatetime(end_naive, eastern).tzinfo
      )
  
file_path: pandas/pandas/tests/tslibs/test_timezones.py
imports: from datetime import datetime, timedelta, timezone
  import dateutil.tz
  import pytest
  import pytz
  from pandas._libs.tslibs import conversion, timezones
  from pandas.compat import is_platform_windows
  from pandas import Timestamp
label_desc: Use image node_id 9 for calling a global function with example usage: test_infer_tz_compat(infer_setup) without return types