I can't remember or find an example of how protobuf data for DroppedItems is implemented or usable currently.

DroppedItems return the itemID as a parameter according to the protobuf spec.
Action_PickUpItem() takes an item handle as an argument.

My question is:

Is `itemID` the handle to the item?

If not, how do I get an item handle from an itemID for an item that's not in my inventory?