import ModelComponent from "../../db/ModelComponent.js";
import User from "../models/User.js";
export declare const USERNAME_REGEXP: RegExp;
export default class UserNameComponent extends ModelComponent<User> {
    private name?;
    private name_changed_at?;
    init(): void;
    hasName(): boolean;
    getName(): string;
    setName(newName: string): boolean;
    getNameChangedAt(): Date | null;
    forgetNameChangeDate(): void;
    canChangeName(): boolean;
}