how to create Training Data (.las) for arcgis.learn in ArcGIS pro

[JohnS]

Good day,

I am interested in the full workflow to conduct machine learning classification.

I have .las data imported in ArcGIS pro. I don't know how to create Training Data (.las) for arcgis.learn and the other steps for the point cloud. 

There will be three classes, as such: ground, trunk, and leaves.

[DanPatterson]

You don't indicate what you have read and whether or not you have data to begin your work.

What is a LAS dataset?—ArcGIS Pro | Documentation

If you expand the help tree on the left of the listed topic, much of what you are looking for is there.

Have you also completed tutorials or courses on associated topics in this area?