code: def expire_key(self, key):
          '''
          Expire the key, delete the value, and call the callback function
          if one is specified.
  
          Args:
              key: The ``TimedDict`` key
          '''
          value = self.base_dict[key]
          del self[key]
          if self.callback is not None:
              self.callback(
                  key, value, *self.callback_args, **self.callback_kwargsf expire_key(self, key):
          '''
          Expire the key, delete the value, and call the callback function
          if one is specified.
  
          Args:
              key: The ``TimedDict`` key
          '''
          value = self.base_dict[key]
          del self[key]
          if self.callback is not None:
              self.callback(
                  key, value, *self.callback_args, **self.callback_kwargs)
docs: Expire the key, delete the value, and call the callback function
          if one is specified.
  
          Args:
              key: The ``TimedDict`` key