export declare const PATTERN: {
    EMAIL: string;
    UUID_V4: string;
};
export declare function isUUIDv4(candidate: string): boolean;
export declare function isValidEmail(email: string): boolean;
export declare function isValidHandle(handle: string): boolean;
export declare const DEFAULT_PASSWORD_MIN_LENGTH = 8;
export declare const DEFAULT_PASSWORD_MAX_LENGTH = 120;
export declare function getNewPasswordPattern(minLength?: number, maxLength?: number): string;
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