Adds a device class of 'garage' to MyQ covers (#14602)

homeassistant/components/cover/myq.py

@@ -69,6 +69,11 @@ class MyQDevice(CoverDevice):
         self._name = device['name']
         self._status = STATE_CLOSED
 
+    @property
+    def device_class(self):
+        """Define this cover as a garage door."""
+        return 'garage'
+
     @property
     def should_poll(self):
         """Poll for state."""