def set_volume_level(self, volume):
        self._volume_level = volume
Test the _write_page_margins() method with footer margin
dataset/ETHPy150Open home-assistant/home-assistant/tests/components/media_player/test_universal.py/MockMediaPlayer.set_volume_level--crossover with--dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/test/worksheet/test_write_page_margins.py/TestWritePageMargins.test_write_page_margins_footer