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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 add_cache(self, object_type, cache_impl_name, maxsize, **kwargs):
 """ Add a new cache for the named object type and cache implementation """

        if object_type not in ZendeskObjectMapping.class_mapping:
            raise ZenpyException("No such object type: %s" % object_type)
        self.cache.mapping[object_type] = ZenpyCache(cache_impl_name, maxsize, **kwargs)