code: def mark_as_done(self, **kwargs):
          
          path = '%s/%s/mark_as_done' % (self.manager.path, self.id)
          server_data = self.manager.gitlab.http_post(path, **kwargs)
          self._update_attrs(server_data)
docs: Mark the todo as done.
  
          Args:
              **kwargs: Extra options to send to the server (e.g. sudo)
  
          Raises:
              GitlabAuthenticationError: If authentication is not correct
              GitlabTodoError: If the server failed to perform the request