code: def test_replace_tzinfo(self):
      # GH#15683
      dt = datetime(2016, 3, 27, 1)
      tzinfo = pytz.timezone("CET").localize(dt, is_dst=False).tzinfo
  
      result_dt = dt.replace(tzinfo=tzinfo)
      result_pd = Timestamp(dt).replace(tzinfo=tzinfo)
  
      # datetime.timestamp() converts in the local timezone
      with tm.set_timezone("UTC"):
          assert result_dt.timestamp() == result_pd.timestamp()
  
      assert result_dt == result_pd
      assert result_dt == result_pd.to_pydatetime()
  
      result_dt = dt.replace(tzinfo=tzinfo).replace(tzinfo=None)
      result_pd = (
          Timestamp(dt).replace(tzinfo=tzinfo).replace(tzinfo=None)
      )
  
      # datetime.timestamp() converts in the local timezone
      with tm.set_timezone("UTC"):
          assert result_dt.timestamp() == result_pd.timestamp()
  
      assert result_dt == result_pd
      assert result_dt == result_pd.to_pydatetime()
  
imports: from datetime import datetime
  from dateutil.tz import gettz
  import numpy
  import pytest
  import pytz
  from pandas._libs.tslibs import OutOfBoundsDatetime, Timestamp, conversion
  from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
  import pandas.util._test_decorators
  import pandas._testing
label_desc: Use image node_id 10 for calling the TestTimestampReplace obj's underlying member method code with example usage: obj.test_replace_tzinfo() without return types