import { BaseModel } from '@ngcore/base';
/**
 * Option for the device/computer/browser.
 * There can be at most one instance of this object stored on a given silo.
 */
export declare class LoginOption extends BaseModel {
    defaultAccountNickname: (string | null);
    private static GLOBAL_LOGIN_OPTION_ID;
    static getDocId(): string;
    getDocId(): string;
    setDocId(_id: string): void;
    constructor(defaultAccountNickname?: (string | null));
    toString(): string;
    clone(): LoginOption;
    static clone(obj: any): LoginOption;
    copy(): LoginOption;
}