code: def onTagDel(self, name, func):
          '''
          Register a callback for tag deletion.
  
          Args:
              name (str): The name of the tag or tag glob.
              func (function): The callback func(node, tagname, tagval).
  
          '''
          if '*' in name:
              self.ontagdelglobs.add(name, func)
          else:
              self.ontagdels[name].append(funcf onTagDel(self, name, func):
          '''
          Register a callback for tag deletion.
  
          Args:
              name (str): The name of the tag or tag glob.
              func (function): The callback func(node, tagname, tagval).
  
          '''
          if '*' in name:
              self.ontagdelglobs.add(name, func)
          else:
              self.ontagdels[name].append(func)
docs: Register a callback for tag deletion.
  
          Args:
              name (str): The name of the tag or tag glob.
              func (function): The callback func(node, tagname, tagval).