code: def test_groupby_transform(self, multiindex_dataframe_random_data):
      frame = multiindex_dataframe_random_data
  
      s = frame["A"]
      grouper = s.index.get_level_values(0)
  
      grouped = s.groupby(grouper, group_keys=False)
  
      applied = grouped.apply(lambda x: x * 2)
      expected = grouped.transform(lambda x: x * 2)
      result = applied.reindex(expected.index)
      tm.assert_series_equal(result, expected, check_names=False)
  
imports: import datetime
  import numpy
  import pytest
  import pandas
  from pandas import DataFrame, MultiIndex, Series
  import pandas._testing
label_desc: Use image node_id 4 for calling the TestMultiLevel obj's underlying member method code with example usage: obj.test_groupby_transform(multiindex_dataframe_random_data) without return types