if err != nil {
		return err
	}

	var ok bool
	claims.AccessKey, ok = claims.Lookup("accessKey")
	if !ok {
		claims.AccessKey, ok = claims.Lookup("sub")
		if !ok {
			return jwtgo.NewValidationError("accessKey/sub missing",
				jwtgo.ValidationErrorClaimsInvalid)
		}
	}

	// Lookup key from claims, claims may not be valid and may return

    hostAddresses.remove(hostname)
    return this
  }

  @Throws(UnknownHostException::class)
  fun lookup(
    hostname: String,
    index: Int,
  ): InetAddress = hostAddresses[hostname]!![index]

  @Throws(UnknownHostException::class)
  override fun lookup(hostname: String): List<InetAddress> {
    requestedHosts.add(hostname)
    return hostAddresses[hostname] ?: throw UnknownHostException()
  }

 */
public class MsrpcLookupSids extends lsarpc.LsarLookupSids {

    SID[] sids;

    /**
     * Creates a new request to lookup SIDs.
     *
     * @param policyHandle the LSA policy handle
     * @param sids the array of SIDs to lookup
     */
    public MsrpcLookupSids(final LsaPolicyHandle policyHandle, final SID[] sids) {

        headers = headersOf("Location", "http://www.fakeurl:" + server.port),
      ),
    )
    server.enqueue(MockResponse())
    val dns = FakeDns()
    dns["fakeurl"] = client.dns.lookup(server.hostName)
    dns["www.fakeurl"] = client.dns.lookup(server.hostName)
    client =
      client
        .newBuilder()
        .dns(dns)
        .build()
    val call =
      client.newCall(
        Request

import org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter;
import org.codehaus.plexus.component.configurator.converters.lookup.ConverterLookup;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;

 * @since 4.0.0
 */
public interface ExtensibleEnumRegistry<T extends ExtensibleEnum> extends Service {
    @Nonnull
    Optional<T> lookup(@Nonnull String id);

    @Nonnull
    default T require(@Nonnull String id) {
        return lookup(id).orElseThrow(() -> new IllegalArgumentException("Unknown extensible enum value '" + id + "'"));
    }

        queryFieldConfig.setSearchFields(fields);

        // Test field at the end (worst case for array lookup, but same for Set)
        String testField = "field999";

        // Warm up
        for (int i = 0; i < 100; i++) {
            queryCommand.isSearchField(testField);
        }

        // Measure Set-based lookup
        long startTime = System.nanoTime();
        for (int i = 0; i < 10000; i++) {

		return User{
			ID:      userid,
			Enabled: false,
		}, nil
	case http.StatusUnauthorized:
		return User{}, ErrAccessTokenExpired
	}
	return User{}, fmt.Errorf("Unable to lookup - keycloak user lookup returned %v", resp.Status)
}

// Option is a function type that accepts a pointer Target
type Option func(*KeycloakProvider)

// WithTransport provide custom transport

import org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter;
import org.codehaus.plexus.component.configurator.converters.lookup.ConverterLookup;
import org.codehaus.plexus.component.configurator.converters.lookup.DefaultConverterLookup;

class EnhancedConverterLookup implements ConverterLookup {
    private final ConverterLookup delegate = new DefaultConverterLookup();

    @BeforeEach
    public void setUp() throws Exception {
        super.setUp();

        ArtifactResolver resolver = getContainer().lookup(ArtifactResolver.class, "classpath");
        DefaultArtifactDescriptorReader pomReader =
                (DefaultArtifactDescriptorReader) getContainer().lookup(ArtifactDescriptorReader.class);
        Field field = DefaultArtifactDescriptorReader.class.getDeclaredField("artifactResolver");