code: def test_dti_tz_localize_utc_conversion(self, tz):
      # Localizing to time zone should:
      #  1) check for DST ambiguities
      #  2) convert to UTC
  
      rng = date_range("3/10/2012", "3/11/2012", freq="30min")
  
      converted = rng.tz_localize(tz)
      expected_naive = rng + offsets.Hour(5)
      tm.assert_numpy_array_equal(converted.asi8, expected_naive.asi8)
  
      # DST ambiguity, this should fail
      rng = date_range("3/11/2012", "3/12/2012", freq="30min")
      # Is this really how it should fail??
      with pytest.raises(
          pytz.NonExistentTimeError, match="2012-03-11 02:00:00"
      ):
          rng.tz_localize(tz)
  
imports: from datetime import datetime, timedelta
  import dateutil.tz
  from dateutil.tz import gettz
  import numpy
  import pytest
  import pytz
  from pandas import DatetimeIndex, Timestamp, bdate_range, date_range, offsets, to_datetime
  import pandas._testing
label_desc: Use image node_id 10 for calling the TestTZLocalize obj's underlying member method code with example usage: obj.test_dti_tz_localize_utc_conversion(tz) without return types