code: private LibBinder getTypeLibInfo(IWTypeLib p) throws BindingException {
          LibBinder tli = typeLibs.get(p);
          if(tli==null) {
              typeLibs.put(p,tli=new LibBinder(p));
          }
          return tli;
      }
docs: Gets or creates a {@link LibBinder} object for the given
  type library.