{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"for"}]}
        for (binding, eff_vis) in visitor.import_effective_visibilities.iter() {
        // is the maximum value among visibilities of bindings corresponding to that def id.
            let NameBindingKind::Import { import, .. } = binding.kind else { unreachable!() };