code: def test_timedelta_fillna(data, dtype, fill_value):
      sr = cudf.Series(data, dtype=dtype)
      psr = sr.to_pandas()
  
      expected = psr.dropna()
      actual = sr.dropna()
  
      assert_eq(expected, actual)
  
      expected = psr.fillna(fill_value)
      actual = sr.fillna(fill_value)
      assert_eq(expected, actual)
  
      expected = expected.dropna()
      actual = actual.dropna()
  
      assert_eq(expected, actual)
  
imports: import datetime
  import operator
  import cupy
  import numpy
  import pandas
  import pytest
  import cudf
  from cudf.testing import _utils
  from cudf.testing._utils import assert_eq, assert_exceptions_equal
label_desc: Use image node_id 23 for calling a global function with example usage: test_timedelta_fillna(data, dtype, fill_value) without return types