public static <T> ProviderInternal<T> changing(SerializableCallable<T> value) {
        return new ChangingProvider<>(value);
    }

    public static class FixedValueProvider<T> extends AbstractProviderWithValue<T> {
        protected final T value;

        FixedValueProvider(T value) {
            this.value = value;
        }

        @Nullable
        @Override
        public Class<T> getType() {

public class ManagedFactories {
    public static class ProviderManagedFactory implements ManagedFactory {
        private static final Class<?> PUBLIC_TYPE = Provider.class;
        private static final Class<?> IMPL_TYPE = Providers.FixedValueProvider.class;
        public static final int FACTORY_ID = Objects.hashCode(IMPL_TYPE.getName());

        @Nullable
        @Override
        public <T> T fromState(Class<T> type, Object state) {