import { ConfigService } from '@nestjs/config';
export declare class TossPaymentsService {
    private configService;
    private readonly logger;
    private readonly baseUrl;
    private readonly secretKey;
    constructor(configService: ConfigService);
    private getAuthHeader;
    issueBillingKey(authKey: string, customerKey: string): Promise<any>;
    chargeBillingKey(billingKey: string, customerKey: string, amount: number, orderName: string, orderId: string): Promise<any>;
    confirmPayment(paymentKey: string, orderId: string, amount: number): Promise<any>;
    getPayment(paymentKey: string): Promise<any>;
}