private func oneImageLoad(_ image: Data?, _ storage: StorageReference, _ completion: @escaping (Result<URL, Error>) ->()){
    let metadata = StorageMetadata()
    metadata.contentType = "image/jpeg"
    guard let imageData = image else { return }
    
    DispatchQueue.global().async {
        storage.putData(imageData, metadata: metadata) { meta, err in
            guard let _ = meta else {
                completion(.failure(err!))
                return
            }
            
            storage.downloadURL { url, err in
                guard let url = url else {
                    completion(.failure(err!))
                    return
                }
                completion(.success(url))
            }
        }
    }
}

///StorageReference - путь в Firebase Storage, куда хотите сохранить фотку
let ref = Storage.storage().reference().child("путь")