export declare function checkAspectRatio(width: number, height: number, tolerance?: number): {
    isMatching: boolean;
    matchedRatio: string | null;
    actualRatio: number;
    actualRatioStr: string;
};
export declare function pollImageTask(this: any, historyId: string, options?: {
    interval?: number;
    maxTimes?: number;
}): Promise<{
    imageUrls: string[];
    status: number;
    failCode?: string;
}>;
export declare function checkLinkType(input: string): "string" | "invalid" | "http" | "file";
export declare function getDimensionsByValue(value: number): [number, number];
export declare const RatiosList: {
    ratio: string;
    value: {
        '1k': {
            width: number;
            height: number;
        };
        '2k': {
            width: number;
            height: number;
        };
    };
}[];
export declare function pollVideoTask(this: any, historyId: string, options?: {
    interval?: 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;
}>;