def block_device_mapping_get_all_by_volume_id(context, volume_id, columns_to_join=None):
 return IMPL.block_device_mapping_get_all_by_volume_id(context, volume_id, columns_to_join)

def block_device_mapping_get_all_by_volume_id ( context , volume_id , columns_to_join = None ) : return IMPL . block_device_mapping_get_all_by_volume_id ( context , volume_id , columns_to_join )
get block device mapping for a given volume .