How to lazy load data in Vaadin-charts

Hello friends of vaadin,

I found this promise on :

“Charts allow zooming both over X and Y-axis to easily allow users to dive into the details of your data. The special timeline chart supports lazy loading from a massive time-based dataset while zooming.”

Unfortunately I could not find more information about lazy loading in vaadin-charts anywhere … maybe overlooked it?
I found a working example (js only) for highcharts

I still wonder how to get this working with vaadin-charts (java only)?
I would be very glad to see a working example…