def block_device_mapping_get_all_by_instance(context, instance_uuid):
 return IMPL.block_device_mapping_get_all_by_instance(context, instance_uuid)

def block_device_mapping_get_all_by_instance ( context , instance_uuid ) : return IMPL . block_device_mapping_get_all_by_instance ( context , instance_uuid )
get all block device mapping belonging to an instance .