104         kwargs['clear'] = True

   104         kwargs['clear'] = True

   105         super(ETypeRegistry, self).register(obj, **kwargs)

   105         super(ETypeRegistry, self).register(obj, **kwargs)

   106 

   106 

   107     @cached

   107     @cached

   108     def parent_classes(self, etype):

   108     def parent_classes(self, etype):

   109         eschema = self.schema.eschema(etype)

   111         eschema = self.schema.eschema(etype)

   110         parents = [cls.etype_class(e.type) for e in eschema.ancestors()]

   112         parents = [cls.etype_class(e.type) for e in eschema.ancestors()]

   111         parents.append(self.etype_class('Any'))

   113         parents.append(self.etype_class('Any'))

   112         return parents

   114         return parents

   113 

   115