How to set hidden input value in yii2 using ActiveForm?

Question

Yii

In general, I need to set different hiddenInput values ​​for different operations.
How to do it?
The code is something like this:

<? echo $form->field($model1, 'operation')->hiddenInput(); ?>

Answer 1

<? echo $form->field($model1, 'operation')->hiddenInput(['value' => 'hidden value']); ?>

Answer 2

<?= Html::hiddenInput('Model[field]', $value) ?>