'columns'=>[
[
'label'=>$title,
'attribute'=>'ubg',
'value'=>function($model){
},
]
],
columns=>[
'id',
'name',
'email'
]
'columns' => [
[
'label' => $title,
'attribute' => 'name',
'value' => function ($model) {
return $model['name'] . $model['surname'];
},
],
'age',
]