/**
 * Checks if an image file exceeds the size limit for Live Activities.
 * Logs a warning if the image is too large.
 *
 * @param imagePath - Path to the image file
 * @returns true if the image is within the size limit, false otherwise
 */
export declare function checkImageSize(imagePath: string): boolean;
/**
 * Checks if a file is a supported image type.
 */
export declare function isSupportedImage(filePath: string): boolean;
/**
 * Copies user images from the source directory to the widget's Assets.xcassets.
 *
 * Images are validated for size (must be < 4KB for Live Activities) and
 * added as imagesets to the asset catalog.
 *
 * @param userImagesPath - Path to directory containing user images (relative to project root)
 * @param targetAssetsPath - Path to the Assets.xcassets directory in the widget target
 * @returns Array of image filenames that were copied
 */
export declare function copyUserImages(userImagesPath: string, targetAssetsPath: string): string[];