import { MongodbService } from '../mongodb/mongodb.service';
export declare class ThingStateService {
    private readonly mongoConnection;
    private thingStateCollection;
    constructor(mongoConnection: MongodbService);
    updateThingStateData(track: any, force?: boolean): Promise<any>;
    private update;
    findCursor(thingIds: string[], projection: any, extraQuery?: any): Promise<any>;
}