yii2 dropdown in gridview widget filter

Hi the answer is simple from what you think.

<?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel'  => $searchModel,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            'id',
            'title',
            //don't use this:
            //'statusId',
            //use this instead:
            [
                'attribute' => 'statusId',
                'filter'    => [ "1"=>"open", "2"=>"in progress", "3"=>"closed" ]
            ],
            ['class' => 'yii\grid\ActionColumn'],
        ],
    ]); ?>