import { AngularFireDatabase } from '@angular/fire/database';
import { Observable } from 'rxjs';
import { AuthService } from '../auth/auth.service';
import { Check } from '../../classes';
import 'firebase/functions';
export declare type DrawnData = {
    [q_id: string]: {
        [o_id: string]: {
            [order_key: string]: Check[];
        };
    };
};
export declare class DrawService {
    private db;
    private auth;
    constructor(db: AngularFireDatabase, auth: AuthService);
    data: DrawnData;
    fetch(survey_id: string): Observable<DrawnData>;
}