refresh
Polls current game state and synchronously notifies bindings whose immutable item snapshots changed.
The host invokes this immediately before every attached frame so direct inventory packets and menu transactions share one update boundary. A version adapter may coalesce calls that belong to one atomic native presentation batch; an asynchronous result arriving after that batch's first poll remains pending for the next presentation batch.
Throws
when called from another thread or after platform close.
when platform state cannot be read or an observer fails.