code: def loadSGMLSuperCatalog(filename):
      
      ret = libxml2mod.xmlLoadSGMLSuperCatalog(filename)
      if ret is None:raise treeError('xmlLoadSGMLSuperCatalog() failed')
      return catalog(_obj=ret)
docs: Load an SGML super catalog. It won't expand CATALOG or
        DELEGATE references. This is only needed for manipulating
        SGML Super Catalogs like adding and removing CATALOG or
         DELEGATE entries.