interface AssetSize {
    name: string;
    size: number;
    purpose?: string;
}
interface GeneratorOptions {
    logoPath: string;
    htmlPath: string;
    outputDir?: string;
    sizes?: AssetSize[];
}
declare function downloadImage(url: string): Promise<Buffer>;
declare function loadImage(imagePath: string): Promise<Buffer>;
declare function generateAssets(options: GeneratorOptions): Promise<void>;
declare function updateHtmlMetaTags(htmlPath: string, sizes: AssetSize[]): Promise<void>;

export { type AssetSize, type GeneratorOptions, downloadImage, generateAssets, loadImage, updateHtmlMetaTags };