code: def test_dropna_with_all_nulls(how, data, axis):
      gdf = cudf.DataFrame({"a": data})
      pdf = gdf.to_pandas()
  
      assert_eq(
          pdf.dropna(axis=axis, how=how), gdf.dropna(axis=axis, how=how)
      )
  
file_path: cudf/python/cudf/cudf/tests/test_dropna.py
imports: import numpy
  import pandas
  import pytest
  import cudf
  from cudf.testing._utils import _create_pandas_series_float64_default, assert_eq
label_desc: Use image node_id 3 for calling a global function with example usage: test_dropna_with_all_nulls(how, data, axis) without return types