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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_mrl(self, mrl, *options):
 """Set the MRL to play. Warning: most audio and video options, such as text renderer, have no effects on an individual media. These options must be set at the vlc.Instance or vlc.MediaPlayer instanciation. @param mrl: The MRL @param options: optional media option=value strings @return: the Media object """

        m = self.get_instance().media_new(mrl, *options)
        self.set_media(m)
        return m