{"ast_node_type":"variable","tokens":[{"end":43,"kind":"keyword","start":0,"text":"let"}]}
    let args = args.into_iter().join(", ");
pub fn generic_arg_list(args: impl IntoIterator<Item = ast::GenericArg>) -> ast::GenericArgList {
    ast_from_text(&format!("const S: T<{args}> = ();"))