In the Revit to Rhino training. I do see a clear break down of the received information:
Training: Tutorial @floors, @structural columns, @structural framing, etc.
When I tried to receive the structural framing data from Revit into GH, the deconstruct speckle object provided a completely different format:
Since the tutorial was made, we have updated the Grasshopper UI components for various reasons. You can still find what you are looking for by simply using the Explode Tree component, or use the slider and the tree branch component to fetch a specific category that you want. You can then use the deconstruct speckle component to access the properties and parameters.