import { AxiosRequestConfig } from 'axios';
import { ITranslateOptions, ITranslateApiConfig, ITranslateBaiduResponse } from './translate.interface';
export declare class TranslateBaiduService {
    private options;
    constructor(options: ITranslateOptions);
    private readonly server;
    request(config: AxiosRequestConfig): Promise<any>;
    getSalt(): string;
    getSign(q: string, salt: string): string;
    getUrl(config: ITranslateApiConfig): string;
    translate(config: ITranslateApiConfig): Promise<ITranslateBaiduResponse>;
}