*
   * If a challenge uses the `token68` variant instead of auth params, there is exactly one
   * auth param in the challenge at key null. Invalid headers and challenges are ignored.
   * No semantic validation is done, for example that `Basic` auth must have a `realm`
   * auth param, this is up to the caller that interprets these challenges.
   */
  fun challenges(): List<Challenge> {

```

### Custom Content Extractor

```java
public class CustomExtractor extends AbstractExtractor {
    @Override
    public ExtractData getText(final InputStream inputStream, final Map<String, String> params) {
        // Custom extraction logic
        ExtractData extractData = new ExtractData();
        // ... implementation
        return extractData;
    }
}

// Register custom extractor

	Vendor             = "vendor"

	// Vendor specific ENV only enabled if the Vendor matches == "vendor"
	KeyCloakRealm    = "keycloak_realm"
	KeyCloakAdminURL = "keycloak_admin_url"

	// Removed params
	JwksURL     = "jwks_url"
	ClaimPrefix = "claim_prefix"
)

// DefaultKVS - default config for OpenID config
var (
	DefaultKVS = config.KVS{
		config.KV{
			Key:   config.Enable,
			Value: "",
		},

    open fun <T> tag(
      type: Class<in T>,
      tag: T?,
    ) = tag(type.kotlin, tag)

    /**
     * Override the [Request.url] for caching, if it is either polluted with
     * transient query params, or has a canonical URL possibly for a CDN.
     *
     * Note that POST requests will not be sent to the server if this URL is set
     * and matches a cached response.
     */

        private final String suffix;

        /**
         * Constructs a new TextFragment.
         *
         * @param prefix optional prefix text
         * @param textStart start of the target text
         * @param textEnd optional end of the target text
         * @param suffix optional suffix text
         */

      <artifactId>junit-jupiter-api</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-params</artifactId>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>commons-jxpath</groupId>
      <artifactId>commons-jxpath</artifactId>
      <scope>test</scope>
    </dependency>

	cred, _, _ = getReqAccessKeyV4(r, region, serviceS3)
	if cred.AccessKey == "" {
		cred, _, _ = getReqAccessKeyV2(r)
	}
	return cred
}

// Extract request params to be sent with event notification.
func extractReqParams(r *http.Request) map[string]string {
	if r == nil {
		return nil
	}

	region := globalSite.Region()
	cred := getReqAccessCred(r, region)

     * @param form the list form containing target page information
     * @return HTML response with specified page results
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse move(final ListForm form) {
        saveToken();
        return doMove(form, 0);
    }

    /**
     * Handles pagination movement logic.
     *
     * @param form the list form containing current state

			tx.Statement = db.Statement.clone()
			tx.Statement.DB = tx
		}

		return tx
	}

	return db
}

// Expr returns clause.Expr, which can be used to pass SQL expression as params
func Expr(expr string, args ...interface{}) clause.Expr {
	return clause.Expr{SQL: expr, Vars: args}
}

// SetupJoinTable setup join table schema

	URL         *xnet.URL
	AuthToken   string
	Transport   http.RoundTripper
	CloseRespFn func(r io.ReadCloser)

	RolePolicy string
	RoleARN    arn.ARN
}

// Validate - validate configuration params.
func (a *Args) Validate() error {
	req, err := http.NewRequest(http.MethodPost, a.URL.String(), bytes.NewReader([]byte("")))
	if err != nil {
		return err
	}