import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { ApiUtilsService } from './api-utils.service';
import { WineProductInstanceExpertRatingDto, WineRatingSystemInfoDto } from '../domain';
export declare class WineRatingControllerService {
    private _serverUrl;
    private _httpClient;
    private _apiUtils;
    constructor(_serverUrl: string, _httpClient: HttpClient, _apiUtils: ApiUtilsService);
    private _headers;
    addCustomHeader(headerName: string, headerValue: string | string[]): this;
    addWineProductInstanceRating(requestBody: WineProductInstanceExpertRatingDto): Observable<number>;
    getAllowedRatingSystems(instanceid: number): Observable<{
        [key: string]: string;
    }>;
    getWineProductInstanceRatings(instanceid: number): Observable<Array<WineProductInstanceExpertRatingDto>>;
    getWineRatingSystem(id: string): Observable<WineRatingSystemInfoDto>;
    getWineRatingSystems(): Observable<Array<WineRatingSystemInfoDto>>;
}