echo \kotchuprik\medium\Widget::widget([
    'model' => $model,
    'attribute' => 'attribute',
]);

echo \kotchuprik\medium\Widget::widget([
    'model' => $model,
    'attribute' => 'attribute',
    'theme' => 'bootstrap',
    'settings' => [
        'buttons' => ['bold', 'italic', 'quote'],
    ],
]);

echo $form->field($model, 'attribute')->widget(\kotchuprik\medium\Widget::className());

echo $form->field($model, 'attribute')->widget(\kotchuprik\medium\Widget::className(), [
    'theme' => 'bootstrap',
    'settings' => [
        'buttons' => ['bold', 'italic', 'quote'],
    ],
]);