The contract's structural attr_keys a scene ROOT carries. Lock (B10): each must be a declared key of ZarrSceneAttrs, so a header key added to the contract cannot be silently untyped on the viewer side.
attr_keys
ZarrSceneAttrs
The contract's structural
attr_keysa scene ROOT carries. Lock (B10): each must be a declared key ofZarrSceneAttrs, so a header key added to the contract cannot be silently untyped on the viewer side.