code: def test_re_emit_single(self) -> None:
      with pytest.warns(DeprecationWarning):
          with pytest.warns(UserWarning):
              warnings.warn("user warning", UserWarning)
              warnings.warn(
                  "some deprecation warning", DeprecationWarning
              )
  
imports: import warnings
  from typing import List
  from typing import Optional
  from typing import Type
  import pytest
  from _pytest.pytester import Pytester
  from _pytest.recwarn import WarningsRecorder
label_desc: Use image node_id 16 for calling the TestWarns obj's underlying member method code with example usage: obj.test_re_emit_single() without return types