Adding attributes with loading-states extension

[tapegram]

Problem

I'm using shoelace buttons where you just add a loading attribute to get the library's loading behavior.

It would be really nice if loading-states was flexible enough to add/remove attributes when requests are in flight, the same as with classes.

Proposal

Locally, I made a copy of the extension and added this:

loadingStateEltsByType['data-loading-attribute'].forEach(
					function (sourceElt) {
						getLoadingTarget(sourceElt).forEach(function (targetElt) {
							queueLoadingState(
								sourceElt,
								targetElt,
								function() { targetElt.loading = true },
                                                                  function() { targetElt.loading = false }
							)
						})
					}
				)

And it works great for me working with shoelace. But I was wondering if it might make sense to allow this extension to add/remove custom attributes, for cases such as this?