import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { QueryOptions, IdentityService } from '@bsynchro/common';
import * as i0 from "@angular/core";
export declare class ContactsService {
    httpClient: HttpClient;
    private _environment;
    private _identityService;
    constructor(httpClient: HttpClient, _environment: any, _identityService: IdentityService);
    getContactById(contactId: string): Observable<any>;
    getContacts(qo: QueryOptions): Observable<any>;
    addContact(contact: any): Observable<any>;
    updateContactBasicInfo(contactPayload: any, extendedPropertiesToUpsert?: string[]): Observable<any>;
    updateContact(contact: any): Observable<any>;
    saveContactReferrals(payload: Array<any>): Observable<any>;
    isValidContact(contact: any): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<ContactsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ContactsService>;
}