@@ -43,7 +43,7 @@ def _join_mqtt_topic_levels(
mac_address: str,
) -> str:
return topic_prefix + "/".join(
- mac_address if l == _MQTTTopicPlaceholder.MAC_ADDRESS else typing.cast(str, l)
+ mac_address if l == _MQTTTopicPlaceholder.MAC_ADDRESS else l
for l in topic_levels
)
