gistfile1.txt

func downloadImageAndMetadata(imageNumber: Int) async throws -> DetailedImage {
    return try await withCheckedThrowingContinuation({
        (continuation: CheckedContinuation<DetailedImage, Error>) in
        downloadImageAndMetadata(imageNumber: imageNumber) { image, error in
            if let image = image {
                continuation.resume(returning: image)
            } else {
                continuation.resume(throwing: error!)
            }
        }
    })
}