Return all queues for the given names (for all available priorities)

def get_all(cls, names):
        """
        Return all queues for the given names (for all available priorities)
        """
        names = cls._get_iterable_for_names(names)

        queues = []
        for queue_name in names:
            queues.extend(cls.collection(name=queue_name).instances())

        return queues