public Class<?> publicType() {
        return Provider.class;
    }

    @Override
    public Object unpackState() {
        return getOrNull();
    }

    @Override
    public int getFactoryId() {
        return ManagedFactories.ProviderManagedFactory.FACTORY_ID;
    }

    private String cannotQueryValueOf(Value<? extends T> value) {
        TreeFormatter formatter = new TreeFormatter();

        @Override
        protected void serialize(Encoder encoder, IsolatedImmutableManagedValue value) throws Exception {
            encoder.writeInt(value.getValue().getFactoryId());
            encoder.writeString(value.getValue().publicType().getName());
            writeState(encoder, value.getValue().unpackState());
        }

        @Override

        valueState.finalizeOnNextGet();
    }

    @Override
    public void disallowUnsafeRead() {
        valueState.disallowUnsafeRead();
    }

    @Override
    public int getFactoryId() {
        return ManagedFactories.ConfigurableFileCollectionManagedFactory.FACTORY_ID;
    }

    @Override
    public String getDisplayName() {

    public Class<V> getValueType() {
        return valueType;
    }

    @Override
    public Class<?> publicType() {
        return MapProperty.class;
    }

    @Override
    public int getFactoryId() {
        return ManagedFactories.MapPropertyManagedFactory.FACTORY_ID;
    }

    @Override
    public Provider<V> getting(final K key) {
        return new EntryProvider(key);
    }

                    _AASTORE();
                    propertyIndex++;
                }
                _ARETURN();
            }});

            // Generate: int getFactoryId() { return <factory-id-field> }
            publicMethod("getFactoryId", getMethodDescriptor(INT_TYPE), methodVisitor -> new MethodVisitorScope(methodVisitor) {{
                _GETSTATIC(generatedType, FACTORY_ID_FIELD, INT_TYPE);
                _IRETURN();