Fix syntax issue

chat/serializers.py

@@ -12,7 +12,7 @@ class RoomSerializer(serializers.HyperlinkedModelSerializer):
         model = Room
         fields = ['id', 'name']
 
-classMessageSerializer (serializers.HyperlinkedModelSerializer):
+class MessageSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = Message
         fields = ['id', 'text', 'date', 'user', 'room', 'parent']