Use isinstance instead of type

asyncio_mqtt/client.py

@@ -79,7 +79,7 @@ async def connect(self, *, timeout=10):
             await loop.run_in_executor(None, self._client.connect, self._hostname, self._port, 60)
             # paho.mqttClient.socket() return non-None after the call to connect.
             client_socket = self._client.socket()
-            if type(client_socket) is not mqtt.WebsocketWrapper:
+            if not isinstance(client_socket, mqtt.WebsocketWrapper):
                 client_socket.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 2048)
         # paho.mqtt.Client.connect may raise one of several exceptions.
         # We convert all of them to the common MqttError for user convenience.