How to cancel asynchronous asset loading?

I need to load some assets asynchronously. And I'm facing the problem of what to do if the user changes his mind and does not need them to be loaded anymore in the case where the loading task has not been completed yet.

How can I cancel the asynchronous loading?

Currently, I'm using AssetBundles to load the assets. I definitely would not want to waste the user computational resources if possible.

No one knows!