How to center submit with Bootstrap-4?

Question

Bootstrap

How to align Submit in the middle of the div block using bootstrap in this form?

<div class="form-group row pl-1">
  <div class = "col-sm-2">
    {{ Form::submit('Редактировать профиль', ['class' => 'btn btn-primary m-auto']) }}
  </div>
</div>

Answer 1

https://getbootstrap.com/docs/4.0/utilities/flex/
Here are the built-in classes for alignment