code: def data_test_nested():
      return [
          list(list(y for y in range(x % 5)) for x in range(i))
          for i in range(40)
      ]
  
imports: import numpy
  import pandas
  import pytest
  from pandas.testing import assert_series_equal
  from dask import dataframe
  from cudf import DataFrame, Series, date_range
  from cudf.testing._utils import assert_eq, does_not_raise
  import dask_cudf
label_desc: Use image node_id 23 for calling a global function with example usage: data_test_nested() and returns: unknown