def test_build_event(self):
        evt = event.build_event("evt_name", arg1="val1", arg2=None)
        assert evt.name == "evt_name"
        assert evt.args == {'arg1': "val1", 'arg2': None}
def teardown(self, stage: Optional[str] = None) -> None:
        """
        Execute arbitrary post-profiling tear-down steps.

        Closes the currently open file and stream.
        """
        self._write_stream = None
        if self._output_file is not None:
            self._output_file.close()
            self._output_file = None  # can't pickle TextIOWrapper