/**
 * Represents an error thrown when encountering an unknown validation rule identifier.
 */
declare class UnknownRuleIdentifier extends Error {
    /**
     * Concerned identifier.
     */
    readonly identifier: string;
    /**
     * Error type name.
     */
    name: string;
    /**
     * Create a new error instance.
     *
     * @param identifier - Concerned identifier.
     */
    constructor(identifier: string);
}
export default UnknownRuleIdentifier;