interface ExifData { Make?: string; Model?: string; DateTime?: string; ExposureTime?: string; FNumber?: string; FocalLength?: string; ISOSpeedRatings?: number; LensModel?: string; [key: string]: any; } declare class ImageExifReader { constructor(); readExifData(file: File, callback: (error: Error | null, data?: ExifData) => void): void; } export default ImageExifReader;