private val call: RealCall,
  private val fastFallback: Boolean,
) {
  // State for negotiating the next proxy to use.
  private var proxies = emptyList<Proxy>()
  private var nextProxyIndex: Int = 0

  // State for negotiating the next socket address to use.
  private var inetSocketAddresses = emptyList<InetSocketAddress>()

  // State for negotiating failed routes

        RobotsTxt robotsTxt;
        final InputStream in = new java.io.ByteArrayInputStream(robotsTxtContent.getBytes());
        try {
            robotsTxt = robotsTxtHelper.parse(in);
        } finally {
            CloseableUtil.closeQuietly(in);
        }

        // Directives before User-agent should be ignored

     */
    public AbstractXmlExtractor() {
        // NOP
    }

    /**
     * Returns the pattern used to extract encoding information from content.
     * @return The encoding pattern.
     */
    protected abstract Pattern getEncodingPattern();

    /**
     * Returns the pattern used to identify tags in the content.
     * @return The tag pattern.
     */
    protected abstract Pattern getTagPattern();

     * control over which classes can be deserialized. Use this when the default filter
     * is too restrictive or permissive for your use case.
     * </p>
     *
     * @param bytes the byte array (must not be {@literal null})
     * @param filter the ObjectInputFilter to use, or null to disable filtering
     * @return the deserialized object

		return
	}

	if GlobalKMS == nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
		return
	}

	keyID := r.Form.Get("key-id")

	// Ensure policy allows the user to create this key name
	cred, owner, s3Err := validateAdminSignature(ctx, r, "")
	if s3Err != ErrNone {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

    /**
     * Prefix used to identify regex patterns in related content terms.
     * When a term starts with this prefix, it is treated as a regular expression
     * pattern rather than an exact match term.
     */
    protected String regexPrefix = "regex:";

    /**
     * Placeholder string used in regex-based related content templates.

            classes[i] = arg == null ? null : arg.getClass();
        }

        return getMostSpecific(methodList, classes);
    }

    /**
     * simple distinguishable exception, used when
     * we run across ambiguous overloading
     */
    static class AmbiguousException extends Exception {

        private static final long serialVersionUID = 751688436639650618L;
    }

     */
    @Size(max = 10000)
    @Required
    public String rt;

    /**
     * Hash value for security or validation purposes.
     * This field is optional and used for request verification.
     */
    public String hash;

    /**
     * Query identifier associated with the search that led to this document access.
     * This is required for tracking and analytics purposes.

    /**
     * The sort order for displaying this label type.
     */
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer sortOrder;

    /**
     * The user who created this label type.
     */
    @Size(max = 1000)
    public String createdBy;

    /**
     * The timestamp when this label type was created.
     */
    @ValidateTypeFailure

 * occurrences of an element are removed, after which that element is added to the multiset, the
 * element will appear at the end of the iteration.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#multiset">{@code Multiset}</a>.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible