stype->properties = storage_type->properties;
stype->content = xbt_strdup(storage_type->content);
stype->type_id = xbt_strdup(storage_type->id);
stype->properties = storage_type->properties;
stype->content = xbt_strdup(storage_type->content);
stype->type_id = xbt_strdup(storage_type->id);