export interface BFLSubmitParams {
    prompt: string;
    input_image?: string;
    input_image_2?: string;
    input_image_3?: string;
    input_image_4?: string;
    input_image_5?: string;
    input_image_6?: string;
    input_image_7?: string;
    input_image_8?: string;
    width?: number;
    height?: number;
    seed?: number;
    safety_tolerance?: number;
    output_format?: 'jpeg' | 'png';
}
export interface BFLSubmitResponse {
    id: string;
    polling_url: string;
    status?: string;
    cost?: number;
    input_mp?: number;
    output_mp?: number;
}
export interface BFLPollResponse {
    status: 'Pending' | 'Ready' | 'Error' | 'Request Moderated' | 'Content Moderated' | 'Task not found';
    result?: {
        sample?: string;
        prompt?: string;
        seed?: number;
        start_time?: number;
        end_time?: number;
        duration?: number;
    };
    progress?: number;
}
export interface PollOptions {
    interval?: number;
    timeout?: number;
    onProgress?: (status: string, progress?: number) => void;
}
export declare class BFLClient {
    private client;
    constructor(apiKey: string);
    /**
     * 提交图像生成/编辑任务 (FLUX.2 Pro)
     */
    submit(params: BFLSubmitParams): Promise<BFLSubmitResponse>;
    /**
     * 获取任务结果
     */
    getResult(taskId: string): Promise<BFLPollResponse>;
    /**
     * 轮询等待结果
     */
    poll(taskIdOrUrl: string, options?: PollOptions): Promise<BFLPollResponse>;
    /**
     * 将本地图像转换为 base64 data URL
     */
    imageToBase64(filePath: string): Promise<string>;
    /**
     * 下载图像到本地
     */
    downloadImage(url: string, outputDir: string, filename?: string): Promise<string>;
    private sleep;
}
//# sourceMappingURL=bfl-api.d.ts.map