code: def test_encode_decode(any_string_dtype):
      ser = Series(
          ["a", "b", "a\xe4"], dtype=any_string_dtype
      ).str.encode("utf-8")
      result = ser.str.decode("utf-8")
      expected = ser.map(lambda x: x.decode("utf-8")).astype(object)
      tm.assert_series_equal(result, expected)
  
imports: from datetime import datetime, timedelta
  import numpy
  import pytest
  from pandas import DataFrame, Index, MultiIndex, Series
  import pandas._testing
  from pandas.core.strings.accessor import StringMethods
  from pandas.tests.strings import object_pyarrow_numpy
label_desc: Use image node_id 32 for calling a global function with example usage: test_encode_decode(any_string_dtype) without return types