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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 with_retry(cls, methods):
 """ Wraps the given list of methods in a class with an exponential-back retry mechanism. """

    retry_with_backoff = retry(
        retry_on_exception=lambda e: isinstance(e, BotoServerError),
        wait_exponential_multiplier=1000,
        wait_exponential_max=10000
    )
    for method in methods:
        m = getattr(cls, method, None)
        if isinstance(m, collections.Callable):
            setattr(cls, method, retry_with_backoff(m))
    return cls