code: def test_str_attribute(self):
      # GH#9068
      methods = ["strip", "rstrip", "lstrip"]
      ser = Series([" jack", "jill ", " jesse ", "frank"])
      for method in methods:
          expected = Series(
              [getattr(str, method)(x) for x in ser.values]
          )
          tm.assert_series_equal(
              getattr(Series.str, method)(ser.str), expected
          )
  
      # str accessor only valid with string values
      ser = Series(range(5))
      with pytest.raises(
          AttributeError, match="only use .str accessor"
      ):
          ser.str.repeat(2)
  
imports: import pytest
  from pandas import Series
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestStrAccessor obj's underlying member method code with example usage: obj.test_str_attribute() without return types