Optionally transfer the state separately from the widget

[sodafago]

Hello everyone! Currently, the pre-calculated information on clusters is stored directly in the widget, but it would be possible to add the ability to take it out separately to the API. This would allow you to turn the layer on and off, without counting all the clusters again each time (if the markers have not changed).
I understand that this is not a very critical moment for performance, but it looks like a good, pleasant improvement.
Thanks in advance for the response and the excellent library!
I am also ready to participate in the development of this functionality, but I would like to know your opinion on this issue first.