form field how to use readonly in volt?

{{ input("name", "readonly", "value" => '') }}

something along the lines of that

I tried but didn't work... I don't know why... <?php echo $form->render("mediaid",array("readonly" => "readonly")) ?> this works well..

{{ input("name", "readonly", "value" => '') }}

something along the lines of that

{{ text_field('name', 'readonly': 'true', 'value': null) }}