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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 _connected(self, transport, conn):
 """Login and sync the ElkM1 panel to memory."""

        LOG.info("Connected to ElkM1")
        self._conn = conn
        self._transport = transport
        self._connection_retry_timer = 1
        if url_scheme_is_secure(self._config['url']):
            self._conn.write_data(self._config['userid'], raw=True)
            self._conn.write_data(self._config['password'], raw=True)
        self.call_sync_handlers()
        if not self._config['url'].startswith('serial://'):
            self._heartbeat = self.loop.call_later(120, self._reset_connection)