Add empty base object as optional fallback

baseInterface.go

@@ -56,3 +56,13 @@ func UnmarshalBaseObject(raw map[string]any, _ BaseApChain) (BaseApChain, error)
 		Type: objType[0],
 	}, nil
 }
+
+type EmptyBaseObject struct{}
+
+func (e *EmptyBaseObject) GetSelfOrBase() (BaseApChain, bool) {
+	return e, false
+}
+
+func (e *EmptyBaseObject) MarshalToMap() map[string]any {
+	return map[string]any{}
+}