import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { DistanceType } from '../../enums/distance-type.enums';
import { Position } from '../../models/position.model';
import { MapService } from './abstract-map';
export declare abstract class DistanceService<T, U, N> {
    private _http;
    map: MapService<T, U, N>;
    private _token;
    constructor(_http: HttpClient);
    initMap(map: MapService<T, U, N>): void;
    getDistance(positions: Position[], type: DistanceType): Observable<number[]>;
    private _getCoordinates;
    private _getDestinations;
}