def connect(self) -> None:
             self._socket = socket()
-            self._broadcast('CONN_ALERT',
+            self._broadcast(EventType.CONN_ALERT,
                             f'Connecting to {self._hostname} …')
             self._socket.settimeout(TIMEOUT_CONNECT)
             try:
                 self._socket.connect((self._hostname, PORT))
             except (TimeoutError, socket_gaierror) as e:
-                self._broadcast('CONN_ALERT', str(e))
+                self._broadcast(EventType.CONN_ALERT, str(e))
                 return
             self._socket.settimeout(TIMEOUT_LOOP)
             self._assumed_open = True
-            self._broadcast('CONNECTED')
+            self._broadcast(EventType.CONNECTED)
             self._recv_loop = SocketRecvLoop(self._idx, self._q_to_main,
                                              self._read_lines())