import { IgApiClient } from 'instagram-private-api';
export declare class FbnsDeviceAuth {
    private authLog;
    clientId: string;
    userId: number;
    password: string;
    deviceId: string;
    deviceSecret: string;
    sr?: string;
    rc?: string;
    private json?;
    private ig;
    constructor(ig: IgApiClient);
    update(): void;
    read(jsonStr: string): void;
    toString(): string;
}