{"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"Expr::Array(a)"}]}
            Expr::Array(a) => match a {
            Expr::Tuple { exprs, .. } => exprs.iter().copied().for_each(f),
                Array::ElementList { elements, .. } => elements.iter().copied().for_each(f),