bin/console in usable-2.1.3 vs bin/console in usable-2.2.0

@@ -59,9 +59,10 @@
 class Example
   extend Usable
   usable Mixin
   usable VersionMixin do
     max_versions 10
+    model { Model }
   end
   usable Nested::Extension
 end
 
 Model.usable PersistenceOverride, method: 'prepend'