import { AxiosRequestConfig } from 'axios';
import { IDouyinPayV2Config } from './douyin.interface';
import { ISignVerifyOptions, IOrderByOrderIdOptions, IOrderByOutOrderNoOptions } from './douyin-pay-v2.interface';
export declare class DouyinPayV2 {
    constructor(config: IDouyinPayV2Config);
    readonly apiUrl: string;
    private privateKey;
    private publicKey;
    private platformPublicKey;
    private appid;
    private keyVersion;
    request(config: AxiosRequestConfig): Promise<any>;
    private randomCharacter;
    getAuthorization(data: string): string;
    signVerify({ timestamp, nonce, signature, body }: ISignVerifyOptions): boolean;
    orderByOrderId(options: IOrderByOrderIdOptions): Promise<Record<string, any>>;
    orderByOutOrderNo(options: IOrderByOutOrderNoOptions): Promise<Record<string, any>>;
}