def backup_get_all_by_volume(context, volume_id, filters=None):
 return IMPL.backup_get_all_by_volume(context, volume_id, filters=filters)

def backup_get_all_by_volume ( context , volume_id , filters = None ) : return IMPL . backup_get_all_by_volume ( context , volume_id , filters = filters )
get all backups belonging to a volume .