Is there a any callback for 'Set Asset Labels'?

Hi.
I wanted to do something when user set Asset Labels for any kind of asset.
To do this I think i need somekind of callbacks or event.

But I could not find anything useful in APIs.

Any helps would be appreciated!

Doesn’t look like there’s an API for that - can you give a use case for this? Perhaps people can propose alternative solutions that satisfy the same requirements.