{"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"self.opaques.push(o.def_id);"}]}
        self.opaques.push(o.def_id);
    fn visit_opaque_ty(&mut self, o: &'hir OpaqueTy<'hir>) {
        intravisit::walk_opaque_ty(self, o)