Maxime Lucas

> The combinatorial explosion of the mask array makes it impossible to use in some scenarios > ``` > numpy.core._exceptions._ArrayMemoryError: Unable to allocate 9.72 PiB for an array with shape...

I opened #361 related to this, is there anything else for which this issue should remain open? @nwlandry

Thanks for the question @Liyubov! From `draw()`, you cannot yet do it. However, you can do it by using separately the dedicated function [`draw_node_labels()`](https://xgi.readthedocs.io/en/stable/api/drawing/xgi.drawing.draw.html#xgi.drawing.draw.draw_node_labels) that has a `font_size_nodes` parameter and...

I remember it now, it's Raphtory: https://pometry.github.io/Raphtory/dev/bench/

> The only alternative I can come up with is to define a helper function in `xgi/classes/function` that literally just makes the long call: Agreed, we could do that for...

#203 adds a version of "add"

We could probably implement union and intersection? Using our ideas from the merge function.

By empty do you mean (1) no nodes and no edges, or (2) just no edges? Do we want to return `None` for (1) but 0 for (2)?

@leotrs do we still need this or should we close it?

Is there anything that #210 did not address or should we close?