/**
 * Set Must Change Password DTO
 *
 * Request DTO for requiring a user to change their password on next login.
 *
 * Security:
 * - User sub validated (UUID)
 * - Prevents unauthorized password change requirements
 *
 * @example
 * ```typescript
 * await authService.setMustChangePassword({
 *   sub: 'user-uuid'
 * });
 * ```
 */
/**
 * Request DTO for setting must change password flag
 */
export declare class SetMustChangePasswordDTO {
    /**
     * 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;
}
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