import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { EntityTypes } from '../api/enums';
import { Logger } from './logger.service';
import * as i0 from "@angular/core";
export declare const ENTITY_NOT_FOUND = -1;
export declare class EntityLookupService {
    private http;
    private logger;
    private lookupTasks;
    private lookupQueue;
    private lookupQueueChanged;
    constructor(http: HttpClient, logger: Logger);
    get(type: EntityTypes, id: string): Observable<string | number>;
    private enqueueLookup;
    private getIndex;
    static ɵfac: i0.ɵɵFactoryDeclaration<EntityLookupService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<EntityLookupService>;
}