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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 endure_multi(self, keys, persist_to=-1, replicate_to=-1, timeout=5.0, interval=0.010, check_removed=False):
 """Check durability requirements for multiple keys :param keys: The keys to check The type of keys may be one of the following: * Sequence of keys * A :class:`~couchbase.result.MultiResult` object * A ``dict`` with CAS values as the dictionary value * A sequence of :class:`~couchbase.result.Result` objects :return: A :class:`~.MultiResult` object of :class:`~.OperationResult` items. .. seealso:: :meth:`endure` """

        return _Base.endure_multi(self, keys, persist_to=persist_to,
                                  replicate_to=replicate_to,
                                  timeout=timeout, interval=interval,
                                  check_removed=check_removed)