/**
 * Admin Update User Attributes DTO
 *
 * Request DTO for administrators to update a user's profile information.
 *
 * Security:
 * - Requires target user sub (UUID)
 * - All fields validated according to UserUpdateDTO rules
 * - Uniqueness constraints enforced
 *
 * @example
 * ```typescript
 * const result = await adminAuthService.updateUserAttributes({
 *   sub: 'user-uuid',
 *   username: 'newusername',
 *   firstName: 'John',
 *   lastName: 'Doe',
 * });
 * ```
 */
import { UserUpdateDTO } from './user-update.dto';
/**
 * Request DTO for admin updating user attributes (includes sub)
 */
export declare class AdminUpdateUserAttributesDTO extends UserUpdateDTO {
    /**
     * 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;
    /**
     * Optional flag to retain verification status when updating email/phone.
     *
     * ADMIN-ONLY: this flag intentionally lives on the admin DTO and not on the shared
     * base, because keeping an email/phone flagged verified while changing it is a
     * privileged action. See the note in {@link UserUpdateDTO}.
     *
     * When true:
     * - Email verification status is preserved when email is updated
     * - Phone verification status is preserved when phone is updated
     * - Useful when verification was done externally or outside nauth-toolkit
     *
     * When false or undefined (default):
     * - Email verification is reset to false when email is updated
     * - Phone verification is reset to false when phone is updated
     * - User must re-verify the new email/phone
     *
     * @example
     * ```typescript
     * // Admin updates a user's email but keeps verification (external verification)
     * await adminAuthService.updateUserAttributes({
     *   sub: 'user-uuid',
     *   email: 'new@example.com',
     *   retainVerification: true,
     * });
     * ```
     */
    retainVerification?: boolean;
}
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