code: def test_astype_retain_attrs(self, any_numpy_dtype):
      # GH#44414
      ser = Series([0, 1, 2, 3])
      ser.attrs["Location"] = "Michigan"
  
      result = ser.astype(any_numpy_dtype).attrs
      expected = ser.attrs
  
      tm.assert_dict_equal(expected, result)
  
imports: from datetime import datetime, timedelta
  from importlib import reload
  import string
  import sys
  import numpy
  import pytest
  from pandas._libs.tslibs import iNaT
  import pandas.util._test_decorators
  from pandas import NA, Categorical, CategoricalDtype, DatetimeTZDtype, Index, Interval, NaT, Series, Timedelta, Timestamp, cut, date_range, to_datetime
  import pandas._testing
label_desc: Use image node_id 28 for calling the TestAstype obj's underlying member method code with example usage: obj.test_astype_retain_attrs(any_numpy_dtype) without return types