code: def test_first_with_first_day_last_of_month(
      self, frame_or_series, start, periods
  ):
      # GH#29623
      x = frame_or_series(
          [1] * 100, index=bdate_range(start, periods=100)
      )
      with tm.assert_produces_warning(
          FutureWarning, match=deprecated_msg
      ):
          result = x.first("1ME")
      expected = frame_or_series(
          [1] * periods, index=bdate_range(start, periods=periods)
      )
      tm.assert_equal(result, expected)
  
file_path: pandas/pandas/tests/frame/methods/test_first_and_last.py
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, bdate_range, date_range
  import pandas._testing
label_desc: Use image node_id 4 for calling the TestFirst obj's underlying member method code with example usage: obj.test_first_with_first_day_last_of_month(frame_or_series, start, periods) without return types