'Get provider info updates from driver.
:param volumes: List of Cinder volumes to check for updates
:param snapshots: List of Cinder snapshots to check for updates
:returns: tuple (volume_updates, snapshot_updates)
where volume updates {\'id\': uuid, provider_id: <provider-id>}
and snapshot updates {\'id\': uuid, provider_id: <provider-id>}'

def update_provider_info(self, volumes, snapshots):

    return (None, None)
