+template<typename T>
+class LoadableCollectionItemType;
+
+template<typename T, bool = HasLoader<T>::value>
+struct CollectionItemTypeChooser;
+
+template<typename T>
+struct CollectionItemTypeChooser<T, true>
+{ typedef LoadableCollectionItemType<T> Type; };
+
+template<typename T>
+struct CollectionItemTypeChooser<T, false>
+{ typedef CollectionItemType<T> Type; };
+