def get_node_addresses(self, node_id: bytes) -> Sequence[Tuple[str, int, int]]:
        """Returns list of (host, port, timestamp)."""
        addr_to_ts = self._addresses.get(node_id)
        if not addr_to_ts:
            return []
        return [(str(net_addr.host), net_addr.port, ts)
                for net_addr, ts in addr_to_ts.items()]
Returns list of (host, port, timestamp).
electrum/channel_db.py