One resolved asset destined for a pack, with its bytes already read.
Stable key (guid / address) the runtime resolves by.
Raw bytes.
Optional
Project-relative source path (recorded on the entry, for tooling).
Loader hint ('gltf', 'texture', …).
'gltf'
'texture'
Labels carried into the catalog.
One resolved asset destined for a pack, with its bytes already read.