import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
/**
 * Abstract class
 */
export declare abstract class NgErrorMessageLoader {
    abstract getDictionary(): Observable<any>;
}
/**
 * Load the json file
 */
export declare class NgErrorMessageLoaderService implements NgErrorMessageLoader {
    private _http;
    private _dictURl;
    constructor(_http: HttpClient, _dictURl: string);
    /**
     * Gets the dictionary json file
     * @param dictUrl the Url of the errors dictionary
     */
    getDictionary(): Observable<any>;
}