{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"self.check_unused_vars_in_pat(arm.pat,"}]}
        self.check_unused_vars_in_pat(arm.pat, None, None, |_, _, _, _| {});
    fn visit_arm(&mut self, arm: &'tcx hir::Arm<'tcx>) {
        intravisit::walk_arm(self, arm);