human
I wrote the below code

    def finalizer_remove_output_folder():
        if os.path.exists(u'output_folder'):
            utils.rmtree(u'output_folder')
    request.addfinalizer(finalizer_remove_output_folder)

What's a good function header?
assistant
#Here's a good function header.

@pytest.fixture(scope=u'function')
def remove_output_folder(request):