{"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"if"}]}
        if let ItemKind::Use(use_tree) = &i.kind {
        let mut node_ids = smallvec![hir::ItemId { owner_id: self.owner_id(i.id) }];
            self.lower_item_id_use_tree(use_tree, &mut node_ids);