import { Interval } from '@metromobilite/m-features/core';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class TransformerHelper {
    constructor();
    buildDynamicProperties<T>(interval: Interval, getDataFn: () => Observable<T>): Observable<T>;
    listenDynamicProperties<T>(interval: Interval, obs: Observable<T>, id: string, subscribers: string[]): Observable<T>;
    static ɵfac: i0.ɵɵFactoryDeclaration<TransformerHelper, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TransformerHelper>;
}