Send audio message
        :param str number: phone number with cc (country code)
        :param str path: audio file path

def send_audio(self, number, path):
        """
        Send audio message
        :param str number: phone number with cc (country code)
        :param str path: audio file path
        """
        return self._send_media_path(number, path, RequestUploadIqProtocolEntity.MEDIA_TYPE_AUDIO)