{"ast_node_type":"variable","tokens":[{"end":36,"kind":"keyword","start":0,"text":"let"}]}
    let text: &str = "use foo as _";
pub fn insert_use_as_alias(scope: &ImportScope, path: ast::Path, cfg: &InsertUseConfig) {
    let parse = syntax::SourceFile::parse(text, span::Edition::CURRENT_FIXME);