GITypelib* g_irepository_require (GIRepository *self,
gchar* namespace_,
gchar* version,
GIRepositoryLoadFlags flags);
Force the namespace @namespace_ to be loaded if it isn't already. If @namespace_ is not loaded, this function will search for a ".typelib" file using the repository search path. In addition, a version @version of namespace may be specified. If @version is not specified, the latest will be used.