{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"self.opt_span_lint(lint,"}]}
        self.opt_span_lint(lint, None as Option<Span>, decorate);
    fn lint(&self, lint: &'static Lint, decorate: impl for<'a, 'b> FnOnce(&'b mut Diag<'a, ()>)) {
    }