import { HttpClient } from '@angular/common/http';
import { SurveyMetadata } from 'ng-pli-util';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class SurveyMetadataService {
    private environment;
    private httpClient;
    constructor(environment: any, httpClient: HttpClient);
    save(surveyMetadata: SurveyMetadata): Observable<any>;
    getById(id: number): Observable<any>;
    static ɵfac: i0.ɵɵFactoryDeclaration<SurveyMetadataService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SurveyMetadataService>;
}