bring back allowed types comment

python/templates/Interface.h.jinja2

@@ -92,7 +92,7 @@ private:
  std::unique_ptr<Concept> m_self{nullptr};
 
 public:
-  template<typename ValueT, typename = std::enable_if_t<isInitializableFrom<ValueT>>>
+  template<typename ValueT, typename = std::enable_if_t<isInitializableFrom<ValueT>>> // "{{ class.bare_type }} can only be initialized with one of the following types (and their Mutable counter parts): {{ Types | join(", ") }}");
   {{ class.bare_type }}(ValueT value) :
     m_self(std::make_unique<Model<podio::detail::GetDefaultHandleType<ValueT>>>(value)) {
   }