code: def test_center_ljust_rjust(any_string_dtype):
      s = Series(
          ["a", "b", np.nan, "c", np.nan, "eeeeee"],
          dtype=any_string_dtype,
      )
  
      result = s.str.center(5)
      expected = Series(
          ["  a  ", "  b  ", np.nan, "  c  ", np.nan, "eeeeee"],
          dtype=any_string_dtype,
      )
      tm.assert_series_equal(result, expected)
  
      result = s.str.ljust(5)
      expected = Series(
          ["a    ", "b    ", np.nan, "c    ", np.nan, "eeeeee"],
          dtype=any_string_dtype,
      )
      tm.assert_series_equal(result, expected)
  
      result = s.str.rjust(5)
      expected = Series(
          ["    a", "    b", np.nan, "    c", np.nan, "eeeeee"],
          dtype=any_string_dtype,
      )
      tm.assert_series_equal(result, expected)
  
imports: from datetime import datetime
  import operator
  import numpy
  import pytest
  from pandas import Series, _testing
label_desc: Use image node_id 16 for calling a global function with example usage: test_center_ljust_rjust(any_string_dtype) without return types