export declare class Base {
    private readonly version;
    private readonly ctime;
    private readonly secretKey;
    private readonly apiKey;
    constructor(apiKey?: string, secretKey?: string);
    private createHash256;
    private createHmac512;
    private getCookie;
    protected createRequest(path: string, params: Record<string, string | number>): Promise<any>;
    protected createHomeSig(path: string): string;
    protected createPodcastSig(path: string, type: string): string;
    protected createSearchSig(path: string, type: string, page: number): string;
    protected createCommentSig(path: string, id: string): string;
    protected createIdSig(path: string, id: string): string;
    protected createNoIdSig(path: string): string;
    protected createSuggestSig(path: string): string;
}