Insert a custom block into a custom block (without InnerBlocks)

Hi everyone!

This is my first message here, so I hope I am at the right place to ask my question!

To give the big picture of what I need to do, I will simplify my problem.
I have created two custom Gutenberg blocks, let’s call them slider and slide. I would like to insert slide in the code returned by the edit function of slider, and not using InnerBlocks with a template.

I can’t use InnerBlocks as it adds several <div> elements around the child element that breaks the styling.

Sample of the slide block:

registerBlockType('slide-block', {
	// ...
	parent: ['slider-block'],

	edit: () => (
		<div className="slide">
			Slide content
		</div>
	);
	// ...
});

Sample of the edit function of the slider block:

edit: () => (
	<div className="slider">
		// INSERT SLIDE BLOCK HERE
	</div>
);

The slide class has to be a direct child of the slider class for styling reasons, and that is why I can’t use InnerBlocks.

Any help or idea would be greatly appreciated ??