/**
 * DTO for getting available MFA methods
 *
 * Used to retrieve all registered and allowed MFA methods that can be set up for a user.
 *
 * @example
 * ```typescript
 * const methods = await mfaService.getAvailableMethods({
 *   sub: 'user-uuid'
 * });
 * // Returns: ['totp', 'sms', 'passkey']
 * ```
 */
/**
 * DTO for getting available MFA methods
 */
export declare class GetAvailableMethodsDTO {
    /**
     * User's unique identifier (UUID v4)
     *
     * Validation:
     * - Must be a valid UUID v4 format
     * - Matches DB constraint: char(36) or uuid
     *
     * Sanitization:
     * - Trimmed
     * - Lowercased for consistency
     *
     * @example "a21b654c-2746-4168-acee-c175083a65cd"
     */
    sub: string;
}
/**
 * Response DTO for available MFA methods
 */
export declare class GetAvailableMethodsResponseDTO {
    /**
     * Array of available method names
     *
     * @example ['totp', 'sms', 'passkey', 'email']
     */
    availableMethods: string[];
}
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