import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { CreatePaymentRequest } from '../models/create-payment.model';
import { ExecutePaymentRequest } from '../models/execute-payment.model';
export declare class PayPalApiService {
    private httpClient;
    private authHeaders;
    constructor(httpClient: HttpClient);
    createdPayment(payment: CreatePaymentRequest, access_token: string, url: string): Observable<any>;
    executePayment(executePayment: ExecutePaymentRequest, access_token: string, url: string): Observable<any>;
    normalizeUrl(url: string): string;
    private _setAuthHeaders;
}