code: def test_modelkit_settings_working(monkeypatch):
      class ServingSettings(ModelkitSettings):
          enable: bool = pydantic.Field(
              False,
              validation_alias=pydantic.AliasChoices(
                  "enable",
                  "SERVING_ENABLE",
              ),
          )
  
      assert ServingSettings().enable is False
      assert ServingSettings(enable=True).enable is True
  
      monkeypatch.setenv("SERVING_ENABLE", "True")
      assert ServingSettings().enable is True
      # without ModelkitSettings, the following would raise a ValidationError
      # because both `enable` and `SERVING_ENABLE` are set and passed to the
      # constructor.
      assert ServingSettings(enable=False).enable is False
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_modelkit_settings_working(monkeypatch) without return types