Cannot access PUT request body params

I am making this PUT request via Postman that has form-data body:

And trying to populate the model using this line:

$model->load(Yii::$app->request->getBodyParams(), '');

See, I tried to print worker_id, time_out params of the request on debug console, but getting null. And getBodyParams() is only returning an array of one (“image”) element: