code: def test_series_with_dtype_radd_timedelta(self, dtype):
      # note this test is _not_ aimed at timedelta64-dtyped Series
      # as of 2.0 we retain object dtype when ser.dtype == object
      ser = Series(
          [
              pd.Timedelta("1 days"),
              pd.Timedelta("2 days"),
              pd.Timedelta("3 days"),
          ],
          dtype=dtype,
      )
      expected = Series(
          [
              pd.Timedelta("4 days"),
              pd.Timedelta("5 days"),
              pd.Timedelta("6 days"),
          ],
          dtype=dtype,
      )
  
      result = pd.Timedelta("3 days") + ser
      tm.assert_series_equal(result, expected)
  
      result = ser + pd.Timedelta("3 days")
      tm.assert_series_equal(result, expected)
  
imports: import datetime
  from decimal import Decimal
  import operator
  import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  import pandas.util._test_decorators
  import pandas
  from pandas import Series, Timestamp, option_context
  import pandas._testing
  from pandas.core import ops
label_desc: Use image node_id 9 for calling the TestArithmetic obj's underlying member method code with example usage: obj.test_series_with_dtype_radd_timedelta(dtype) without return types