import { HttpClient } from '@angular/common/http';
import { OAuthService } from 'angular-oauth2-oidc';
import { Logger } from '../logger';
import * as i0 from "@angular/core";
export declare abstract class ApiBaseService {
    protected http: HttpClient;
    protected logger: Logger;
    protected oauthService: OAuthService;
    protected env: any;
    constructor(http: HttpClient, logger: Logger, oauthService: OAuthService, env: any);
    protected get baseUrl(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<ApiBaseService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ApiBaseService>;
}