Checks if the operation is finished.
Returns true if the operation is finished. Otherwise, returns false.
Once the property returns true, GetAssetPackStateAsyncOperation.size and GetAssetPackStateAsyncOperation.states properties can be called to get results.
Read-only.
Additional resources: GetAssetPackStateAsyncOperation.keepWaiting, GetAssetPackStateAsyncOperation.size, GetAssetPackStateAsyncOperation.states.