Move and protect set_relay_lock()

Author: bouwew

plugwise_usb/nodes/circle.py

@@ -183,14 +183,6 @@ def relay_lock(self) -> RelayLock:
         """State of the relay lock."""
         return self._relay_lock
 
-    async def set_relay_lock(self, state: bool) -> bool:
-        """Set the state of the relay-lock."""
-        await self._relay_update_lock(state)
-        await self.publish_feature_update_to_subscribers(
-            NodeFeature.RELAY_LOCK, state
-        )
-        return state
-
     # endregion
 
     async def calibration_update(self) -> bool:
@@ -667,6 +659,15 @@ async def set_relay(self, state: bool) -> bool:
             + "in response to CircleRelaySwitchRequest for node {self.mac}"
         )
 
+    @raise_not_loaded
+    async def set_relay_lock(self, state: bool) -> bool:
+        """Set the state of the relay-lock."""
+        await self._relay_update_lock(state)
+        await self.publish_feature_update_to_subscribers(
+            NodeFeature.RELAY_LOCK, state
+        )
+        return state
+
     async def _relay_load_from_cache(self) -> bool:
         """Load relay state and lock from cache."""
         if (cached_relay_data := self._get_cache(CACHE_RELAY)) is not None: