*/
    ProviderInternal<T> asSupplier(DisplayName owner, Class<? super T> targetType, ValueSanitizer<? super T> sanitizer);

    /**
     * Returns a copy of this provider with a final value. The returned value is used to replace this provider by a property when the property is finalized.
     */
    ProviderInternal<T> withFinalValue(ValueConsumer consumer);

    /**

    }

    public OrElseValueProducer(EvaluationContext.ScopeContext context, ProviderInternal<?> left, ProviderInternal<?> right) {
        this(context, left, right, right.getProducer());
    }

    private OrElseValueProducer(EvaluationContext.ScopeContext context, ProviderInternal<?> left, @Nullable ProviderInternal<?> right, ValueSupplier.ValueProducer rightProducer) {
        this.owner = Objects.requireNonNull(context.getOwner());

    }

    @Override
    protected ProviderInternal<? extends T> finalValue(EvaluationContext.ScopeContext context, ProviderInternal<? extends T> value, ValueConsumer consumer) {
        return value.withFinalValue(consumer);
    }

    @Override
    protected ProviderInternal<? extends T> getDefaultConvention() {
        return Cast.uncheckedCast(NOT_DEFINED);
    }

    @Override

public class ProviderTestUtil {
    public static <T> ProviderInternal<T> withNoValue() {
        return Providers.notDefined();
    }

    public static <T> ProviderInternal<T> withValues(T... values) {
        assert values.length > 0;
        return new TestProvider<>(Cast.uncheckedNonnullCast(values[0].getClass()), Arrays.asList(values), null);
    }

    public static <T> ProviderInternal<T> withChangingExecutionTimeValues(T... values) {

        @Nullable
        ProviderInternal<? extends T> getPending(String name);

        void putPending(String name, ProviderInternal<? extends T> provider);

        void removePending(String name);

        void removePending(ProviderInternal<? extends T> provider);

        Map<String, ProviderInternal<? extends T>> getPendingAsMap();
    }

import javax.annotation.Nullable;

class OrElseProvider<T> extends AbstractMinimalProvider<T> {
    private final ProviderInternal<T> left;
    private final ProviderInternal<? extends T> right;

    public OrElseProvider(ProviderInternal<T> left, ProviderInternal<? extends T> right) {
        this.left = left;
        this.right = right;
    }

    @Override
    protected String toStringNoReentrance() {

    }

    def "can remove realized external providers without realizing more providers"() {
        containerAllowsExternalProviders()
        def provider1 = Mock(ProviderInternal)
        def provider2 = Mock(ProviderInternal)
        def provider3 = Mock(ProviderInternal)

        given:
        _ * provider1.type >> type
        _ * provider1.calculateValue(_) >> ValueSupplier.Value.of(a)

        private final ProviderInternal<? extends Map<? extends K, ? extends V>> providerOfEntries;
        private final boolean ignoreAbsent;

        public EntriesFromMapProvider(ProviderInternal<? extends Map<? extends K, ? extends V>> providerOfEntries) {
            this(providerOfEntries, false);
        }

 */
public abstract class AbstractMinimalProvider<T> implements ProviderInternal<T>, Managed {
    private static final DisplayName DEFAULT_DISPLAY_NAME = Describables.of("this provider");

    @Override

            return;
        }
        if (element instanceof ProviderInternal) {
            // ProviderInternal is-a TaskDependencyContainer, so check first
            ProviderInternal<?> provider = (ProviderInternal<?>) element;