Aron/Introduction.md

@@ -16,3 +16,8 @@ An Aron type specification defines the static type for an Aron data dto or an Ar
         map<string, AronVariant> members;
     }
 ```
+- ```cpp
+    Dict {
+        AronVariant acceptedType;
+    }
+```
\ No newline at end of file