YII2 Gridview how to add jui datepicker in filter

[

    'attribute' => 'slot_date',

    'value' => 'slot_date',

    'filter' => yiijuiDatePicker::widget([

            'language' => 'en',

            'dateFormat' => 'yyyy-MM-dd',

            'model' => $searchModel,

            'attribute' => 'slot_date',
        ]    ),

    'format' => 'html',

],