I want to add class to my group block, to the container “wp-block-group__inner-container“. I know it’s possible to add a div before with render_block, but I want to add bootstrap class like this :

<div class="wp-block-group row">
    <div class="wp-block-group__inner-container col-12 col-lg-10 offset-lg-1 py-3">
    </div>
</div>

How can I do this ?

Thank you !

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Add class to group inner container</a>