code: def test_map_categorical_na_ignore(na_action, expected):
      # GH#47527
      values = pd.Categorical([1, np.nan, 2], categories=[10, 1, 2])
      ser = Series(values)
      result = ser.map({1: 10, np.nan: 42}, na_action=na_action)
      tm.assert_series_equal(result, expected)
  
imports: from collections import Counter, defaultdict
  from decimal import Decimal
  import math
  import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, MultiIndex, Series, bdate_range, date_range, isna, timedelta_range
  import pandas._testing
label_desc: Use image node_id 31 for calling a global function with example usage: test_map_categorical_na_ignore(na_action, expected) without return types