Tongou QCB2: primary entity is not a list

custom_components/tuya_local/devices/tongou_qcb2_circuitbreaker.yaml

@@ -3,12 +3,12 @@ products:
   - id: a0k7kwt5wkqdswnm
     name: Tongou QCB2-WB
 primary_entity:
-  - entity: switch
-    icon: "mdi:fuse"
-    dps:
-      - id: 16
-        type: boolean
-        name: switch
+  entity: switch
+  icon: "mdi:fuse"
+  dps:
+    - id: 16
+      type: boolean
+      name: switch
 secondary_entities:
   - entity: sensor
     class: energy