{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"prev_rest_span"}]}
                    prev_rest_span = Some(sub.span);
                PatKind::Ident(ann, ident, Some(sub)) if sub.is_rest() => {
                    slice = Some(self.arena.alloc(lower_rest_sub(self, pat, ann, ident, sub)));