{"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"let"}]}
    let use_tree_list = use_tree.use_tree_list()?;
fn recursive_normalize(use_tree: &ast::UseTree, style: NormalizationStyle) -> Option<()> {
    let merge_subtree_into_parent_tree = |single_subtree: &ast::UseTree| {