type JimengModel = 'jimeng-4.0' | 'jimeng-3.1' | 'jimeng-3.0' | 'jimeng-2.1' | 'jimeng-2.0-pro' | 'jimeng-2.0' | 'jimeng-1.4' | 'jimeng-xl-pro';
interface JimengApiClientOptions {
    refreshToken?: string;
}
interface CreditInfo {
    gift_credit: number;
    purchase_credit: number;
    vip_credit: number;
    total_credit: number;
}
export declare class JimengApiClient {
    private static readonly MODEL_MAP;
    private static readonly DEFAULT_MODEL;
    private static readonly DRAFT_VERSION;
    private static readonly DEFAULT_ASSISTANT_ID;
    private refreshToken;
    private webId;
    private userId;
    private uploadImageProofUrl;
    private session;
    constructor(options: JimengApiClientOptions);
    private getFakeHeaders;
    private generateCookie;
    private getModel;
    private generateUuid;
    private request;
    private getErrorMessage;
    getCredit(): Promise<CreditInfo>;
    receiveCredit(): Promise<void>;
    private getFileContent;
    private generateRandomString;
    private getUploadAuth;
    private addHeaders;
    private credentialString;
    private signedHeaders;
    private canonicalString;
    private signature;
    private generateAuthorizationAndHeader;
    private uploadCoverFile;
    pollImageTaskStatus(historyId: string, maxTimes?: number): Promise<{
        imageUrls: string[];
        status: number;
        failCode?: string;
    }>;
    generateImage(prompt: string, filePath: string[], model?: any, imgType?: any, sampleStrength?: number, negativePrompt?: string, maxTimes?: number): Promise<{
        list: string[];
        status: number;
        failCode: string | undefined;
        historyId: any;
    }>;
    getVideoModel(str?: string): any;
    getImageSize(imgData: Buffer): Promise<{
        width: number;
        height: number;
    }>;
    generateVideo(prompt: string, filePath?: string, video_aspect_ratio?: string, model?: JimengModel, duration_ms?: number, maxTimes?: number): Promise<{
        videoInfoList: Array<{
            videoUrl: string | undefined;
            width: number | undefined;
            height: number | undefined;
            format: string | undefined;
            cover_url: string | undefined;
            duration_ms: number | undefined;
        }>;
        status: number;
        historyId: string;
        failCode?: string;
    }>;
    pollVideoTaskStatus(historyId: string, maxTimes?: number): Promise<{
        videoInfoList: Array<{
            videoUrl: string | undefined;
            width: number | undefined;
            height: number | undefined;
            format: string | undefined;
            cover_url: string | undefined;
            duration_ms: number | undefined;
        }>;
        status: number;
        historyId: string;
        failCode?: string;
    }>;
}
export {};