async def get_watchtower_ctn(self, channel_point, wallet: Abstract_Wallet = None):
        """
        Return the local watchtower's ctn of channel. used in regtests

        arg:str:channel_point:Channel outpoint (txid:index)
        """
        return wallet.lnworker.get_watchtower_ctn(channel_point)

        Return the local watchtower's ctn of channel. used in regtests

        arg:str:channel_point:Channel outpoint (txid:index)
        
electrum/commands.py