import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { PliCnfLetterTaskMapping } from 'ng-pli-util';
import * as i0 from "@angular/core";
export declare class LetterTaskMappingService {
    private environment;
    private httpClient;
    private headerJson;
    constructor(environment: any, httpClient: HttpClient);
    /** It returns the letter task campaign by promCodigo */
    findAllByPromCodigo(promCodigo: number): Observable<any>;
    /**
     *
     * @param letterTaskCampaing
     * @returns
     */
    save(letterTaskCampaing: PliCnfLetterTaskMapping): Observable<any>;
    /** It saves multiple letter task campaign by promCodigo */
    saveAll(letterTaskCampaing: PliCnfLetterTaskMapping[]): Observable<any>;
    static ɵfac: i0.ɵɵFactoryDeclaration<LetterTaskMappingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<LetterTaskMappingService>;
}