private final ExtraPropertiesExtension extension;
    private final Class<?> delegateType;

    public ExtraPropertiesDynamicObjectAdapter(Class<?> delegateType, ExtraPropertiesExtension extension) {
        this.delegateType = delegateType;
        this.extension = extension;
    }

    @Override
    public String getDisplayName() {
        return delegateType.getName();
    }

    @Override

    }

    @Override
    protected void initializePrivateData(MutableModelNode modelNode) {
        ModelType<T> delegateType = Cast.uncheckedCast(implementationInfo.getDelegateType());
        T instance = Cast.uncheckedCast(implementationInfo.create(modelNode));
        modelNode.setPrivateData(delegateType, instance);
    }

            } else {
                ModelType<?> delegateType = delegateSchema.getType();
                Object delegate = state.getBackingNode().getPrivateData(delegateType);
                Constructor<? extends T> constructor = generatedClass.getConstructor(ModelElementState.class, TypeConverter.class, delegateType.getConcreteClass());
                return constructor.newInstance(state, typeConverter, delegate);

            return null;
        }
        Set<ModelType<?>> internalViews = implementationInfo.getInternalViews();
        ModelType<?> delegateType = implementationInfo.getDelegateType();
        StructBindings<S> bindings = bindingsStore.getBindings(publicSchema.getType(), internalViews, delegateType);
        return new FactoryBasedStructNodeInitializer<T, S>(bindings, implementationInfo);
    }

public interface StructBindingsStore {
    <T> StructBindings<T> getBindings(ModelType<T> publicType);

    <T> StructBindings<T> getBindings(ModelType<T> publicType, Iterable<? extends ModelType<?>> internalViewTypes, ModelType<?> delegateType);