import { ConfigService } from '@nestjs/config';
export declare class PaystarService {
    private configService;
    private readonly apiUrl;
    private readonly token;
    private readonly signKey;
    constructor(configService: ConfigService);
    createPremiumPayment(userId: number): Promise<{
        paymentUrl: string;
        orderId: string;
        token: any;
    }>;
}