xbt_lib_set(storage_lib, storage_private->name, MSG_STORAGE_LEVEL, storage_private);
return xbt_lib_get_elm_or_null(storage_lib, storage_private->name);
xbt_lib_set(storage_lib, storage_private->name, MSG_STORAGE_LEVEL, storage_private);
return xbt_lib_get_elm_or_null(storage_lib, storage_private->name);