code: def test_fillna_categorical_accept_same_type(
      self, input, input_fillna, expected_data, expected_categories
  ):
      # GH32414
      cat = Categorical(input)
      ser = Series(cat).fillna(input_fillna)
      filled = cat.fillna(ser)
      result = cat.fillna(filled)
      expected = Categorical(
          expected_data, categories=expected_categories
      )
      tm.assert_categorical_equal(result, expected)
  
imports: from datetime import datetime, timedelta, timezone
  import numpy
  import pytest
  import pytz
  from pandas import Categorical, DataFrame, DatetimeIndex, NaT, Period, Series, Timedelta, Timestamp, date_range, isna, timedelta_range
  import pandas._testing
  from pandas.core.arrays import period_array
label_desc: Use image node_id 32 for calling the TestSeriesFillNA obj's underlying member method code with example usage: obj.test_fillna_categorical_accept_same_type(input, input_fillna, expected_data, expected_categories) without return types