code: def test_as_unit(self):
      td = Timedelta(days=1)
  
      assert td.as_unit("ns") is td
  
      res = td.as_unit("us")
      assert res._value == td._value // 1000
      assert res._creso == NpyDatetimeUnit.NPY_FR_us.value
  
      rt = res.as_unit("ns")
      assert rt._value == td._value
      assert rt._creso == td._creso
  
      res = td.as_unit("ms")
      assert res._value == td._value // 1_000_000
      assert res._creso == NpyDatetimeUnit.NPY_FR_ms.value
  
      rt = res.as_unit("ns")
      assert rt._value == td._value
      assert rt._creso == td._creso
  
      res = td.as_unit("s")
      assert res._value == td._value // 1_000_000_000
      assert res._creso == NpyDatetimeUnit.NPY_FR_s.value
  
      rt = res.as_unit("ns")
      assert rt._value == td._value
      assert rt._creso == td._creso
  
file_path: pandas/pandas/tests/scalar/timedelta/methods/test_as_unit.py
imports: import pytest
  from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
  from pandas.errors import OutOfBoundsTimedelta
  from pandas import Timedelta
label_desc: Use image node_id 1 for calling the TestAsUnit obj's underlying member method code with example usage: obj.test_as_unit() without return types