How to set default values ​​in select2 when editing?

Question

Yii

I have a select with 'multiple' => true
There are no problems with saving the data. But when I click on edit, in theory there should be saved data in this field (because this is multiple, then there are several data)
How to make them appear when you enter editing ???

echo $form->field($contractObjects, 'contract_objects_object_id')->widget(
                Select2::classname(), [
                                        'hideSearch'    => false,
                                        // 'initValueText' => '',
                                        // 'value' => '',
                                        'options'       => [
                                            'class'       => 'select-category',
                                            'placeholder' => 'Выберите объект',
                                            'multiple' => true
                                        ],
                                        'theme'         => Select2::THEME_DEFAULT,
                                        'data' => ['первое значение', 'второе значение', 'третье значение']
                                    ]
            );

Answer 1

uncomment value and pass an array of keys (if my memory serves me)
'value' => [0,2]