def get_subscription_message(self, **kwargs) -> dict:
        msg = {
            "name": self.get_channel_name(),
            "instrument_codes": map_multiple_pairs(self.pairs, sort = True)
        }

        if self.price_points_mode is not None:
            msg['price_points_mode'] = self.price_points_mode.value

        return msg
 def get_subscription_message(self, **kwargs) -> dict:
     return {
         "name": self.get_channel_name(),
         "depth": self.depth,
         "instrument_codes": map_multiple_pairs(self.pairs, sort = True)
     }