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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def retry(retry_count):
 """ Retry decorator used during file upload and download. """


    def func(f):
        @functools.wraps(f)
        def wrapper(*args, **kwargs):
            for backoff in range(retry_count):
                try:
                    return f(*args, **kwargs)
                except Exception:
                    time.sleep(2 ** backoff)
            else:
                raise SbgError('{}: failed to complete: {}'.format(
                    threading.current_thread().getName(), f.__name__)
                )

        return wrapper

    return func