/**
 * User ID Value Object
 *
 * Type-safe user identifier with validation
 */
import { Id } from '../../shared/value-objects/Id';
/**
 * User ID Type
 *
 * Branded type for user identification
 */
export type UserId = Id & {
    readonly __brand: 'UserId';
};
/**
 * User ID Factory
 */
export declare const UserIdFactory: {
    /**
     * Create a new user ID
     */
    create(): UserId;
    /**
     * Create user ID from string
     */
    fromString(value: string): UserId;
    /**
     * Create user ID from UUID
     */
    fromUuid(uuid: string): UserId;
    /**
     * Create user ID from ULID
     */
    fromUlid(ulid: string): UserId;
    /**
     * Create custom user ID
     */
    createCustom(value: string, format?: string): UserId;
};
/**
 * User ID Validator
 */
export declare const UserIdValidator: {
    /**
     * Check if value is a valid user ID
     */
    isValid(value: any): value is UserId;
    /**
     * Validate user ID format
     */
    validateFormat(value: string): boolean;
    /**
     * Check if user ID is empty
     */
    isEmpty(userId: UserId): boolean;
    /**
     * Compare two user IDs
     */
    areEqual(userId1: UserId, userId2: UserId): boolean;
};
/**
 * User ID Utilities
 */
export declare const UserIdUtils: {
    /**
     * Convert user ID to string
     */
    toString(userId: UserId): string;
    /**
     * Get user ID type
     */
    getType(userId: UserId): string;
    /**
     * Check if user ID is UUID
     */
    isUuid(userId: UserId): boolean;
    /**
     * Check if user ID is ULID
     */
    isUlid(userId: UserId): boolean;
    /**
     * Check if user ID is custom
     */
    isCustom(userId: UserId): boolean;
    /**
     * Check if user ID is auto-increment
     */
    isAutoIncrement(userId: UserId): boolean;
};
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