import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { PeriodScale, PricesDictByTicker3, Ticker } from '../../api-public/models/assets-history';
import * as i0 from "@angular/core";
export declare class ApiExternalSecuritiesPricesService {
    private httpClient;
    constructor(httpClient: HttpClient);
    getSecuritiesPricesGroups4(tickers: Ticker[], scale: PeriodScale, limit: number): Observable<PricesDictByTicker3>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ApiExternalSecuritiesPricesService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ApiExternalSecuritiesPricesService>;
}