def storage_pools(self):
        """
        Returns a `list` of all the `System` objects to the cluster.  Updates every time - no caching.
        :return: a `list` of all the `System` objects known to the cluster.
        :rtype: list
        """
        self.connection._check_login()
        response = self.connection._do_get("{}/{}".format(self.connection._api_url, "types/StoragePool/instances")).json() 
        all_storage_pools = []
        for storage_pool_object in response:
            all_storage_pools.append(SIO_Storage_Pool.from_dict(storage_pool_object))
        return all_storage_pools
Returns a `list` of all the `System` objects to the cluster.  Updates every time - no caching.
        :return: a `list` of all the `System` objects known to the cluster.
        :rtype: list