code: def test_kurt_skew_error(op):
      gs = cudf.Series(["ab", "cd"])
      ps = gs.to_pandas()
  
      with pytest.warns(FutureWarning):
          assert_exceptions_equal(
              getattr(gs, op),
              getattr(ps, op),
              lfunc_args_and_kwargs=([], {"numeric_only": True}),
              rfunc_args_and_kwargs=([], {"numeric_only": True}),
          )
  
imports: from concurrent.futures import ThreadPoolExecutor
  import cupy
  import numpy
  import pandas
  import pytest
  import cudf
  from cudf.datasets import randomdata
  from cudf.testing._utils import _create_cudf_series_float64_default, _create_pandas_series_float64_default, assert_eq, assert_exceptions_equal, expect_warning_if
label_desc: Use image node_id 13 for calling a global function with example usage: test_kurt_skew_error(op) without return types