{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"(0..n).map(move"}]}
    (0..n).map(move |it| tt::Ident::new(&format!("f{it}"), span))
fn tuple_field_iterator(span: Span, n: usize) -> impl Iterator<Item = tt::Ident> {
}