Using containers & Grid for Swiper slider

I’m trying to make Swiper work with the container and grid blocks but I’m having a difficult time due to the inner container. Is there a filter that I can use to inject the inner container with custom classes? I’ve seen the post: Hook into container? (add custom html to container) Which uses one if the filters available. But sadly there is no actions and filters list in the docs. If this is possible this could be great alternative to installing a separate plugin for slider.

Found the filter that works for me generateblocks_inside_container. Added with a str_replace it did the job for me of injecting the required classes.