Bin

One installed Portable Storage Bin. Returned by: Rack.bins

Member	Returns	Meaning
.id	string	"portable_bin" (25 units) or "heavy_portable_bin" (50 units)
.capacity	number	Rated units: 25 basic, 50 heavy
.count	number	Current units stored
.item_id	string or None	Assigned item id, or None when empty/unassigned
.stacks	list of ItemStack	Property-distinct snapshots; equal ids with different properties stay separate