export interface FileTypeResult {
    ext: string;
    mime: string;
}
/**
 * Detect file type from file content using magic bytes.
 * Returns undefined if the file type cannot be determined.
 */
export declare function detectFileType(filePath: string): Promise<FileTypeResult | undefined>;
/**
 * Detect platform (Android or iOS) from app file.
 * Uses a combination of magic bytes and file extension for reliable detection.
 *
 * Android: .apk, .apks files
 * iOS: .ipa, .app, .zip files (when not APK)
 */
export declare function detectPlatformFromFile(filePath: string): Promise<'Android' | 'iOS' | undefined>;
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