code: def test_series_apply_unpack_nested_data():
      # GH#55189
      ser = Series([[1, 2, 3], [4, 5, 6, 7]])
      result = ser.apply(lambda x: Series(x))
      expected = DataFrame(
          {0: [1.0, 4.0], 1: [2.0, 5.0], 2: [3.0, 6.0], 3: [np.nan, 7]}
      )
      tm.assert_frame_equal(result, expected)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, MultiIndex, Series, concat, date_range, timedelta_range
  import pandas._testing
  from pandas.tests.apply.common import series_transform_kernels
label_desc: Use image node_id 41 for calling a global function with example usage: test_series_apply_unpack_nested_data() without return types