import { ValidatorFn } from '@angular/forms';
/**
 * Mirrors the backend `authPassword` validator (services/authv2/password.go):
 * min 8 chars, max 72 chars (bcrypt limit), ≥1 uppercase, ≥1 lowercase,
 * ≥1 digit, ≥1 special char.
 *
 * Returns `{ authPassword: true }` on failure so the form can surface the
 * inline error via `errorKeys: { authPassword: 'passwordStrength' }`.
 */
export declare function authPasswordValidator(): ValidatorFn;