import type { ProfileUser } from '../api/profileUser/ProfileUser.js';
import { type BaseClass } from '../implementation/index.js';
/**
 * An implementation to fetch user related data.
 */
export interface User extends BaseClass {
    /**
     * The username of the user.
     */
    username: string;
    fetchProfile(): Promise<ProfileUser | undefined>;
}
/**
 * Fetch the profile of the user.
 *
 * @param this The class that implements this {@link User} interface.
 * @returns The profile of the user.
 */
export declare function implFetchUser(this: User): Promise<ProfileUser | undefined>;