if (delegateType != null && Modifier.isAbstract(delegateType.getConcreteClass().getModifiers())) {
            throw new InvalidManagedTypeException(String.format("Type '%s' is not a valid managed type: delegate type must be null or a non-abstract type instead of '%s'.",
                publicType.getDisplayName(), delegateType.getDisplayName()));
        }

            ModelType<?> delegateType = implementationInfo.getDelegateType();
            for (InternalViewRegistration<?> internalViewRegistration : internalViewRegistrations) {
                validateManagedInternalView(internalViewRegistration, delegateType);
            }
        }

        return generate(ModelElementState, managedType, delegateType)
    }

    def <T, M extends T, D extends T> Class<? extends T> generate(Class<? extends GeneratedViewState> backingStateType, Class<T> managedType, Class<D> delegateType) {
        def key = [backingStateType, managedType, delegateType]

    def extract(Class<?> type, Class<?> delegateType = null) {
        return extract(type, [], delegateType)
    }
    def extract(Class<?> type, List<Class<?>> viewTypes, Class<?> delegateType = null) {
        return bindingStore.getBindings(
            ModelType.of(type),
            viewTypes.collect { ModelType.of(it) },
            delegateType == null ? null : ModelType.of(delegateType)
        )
    }