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

def mark_as_done(self, **kwargs):
        """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
        """
        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)