See http://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.find_one_and_update

def find_one_and_update(self, filter, update, **kwargs):
        """
        See http://api.mongodb.com/python/current/api/pymongo/collection.html#pymongo.collection.Collection.find_one_and_update
        """
        self._arctic_lib.check_quota()
        return self._collection.find_one_and_update(filter, update, **kwargs)