{"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"let"}]}
        let mut extra_args = self.extra_args(source_root).clone();
    pub fn check_extra_args(&self, source_root: Option<SourceRootId>) -> Vec<String> {
        extra_args.extend_from_slice(self.check_extraArgs(source_root));