{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
    let merge_subtree_into_parent_tree = |single_subtree: &ast::UseTree| {
    let use_tree_list = use_tree.use_tree_list()?;
        let subtree_is_only_self = single_subtree.path().as_ref().is_some_and(path_is_self);