{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"assert!(self.user_config_change.is_none());"}]}
        assert!(self.user_config_change.is_none()); // Otherwise it is a double write.
    pub fn change_user_config(&mut self, content: Option<Arc<str>>) {
        self.user_config_change = content;