aa8cc30e5c
... as well as reworking the example to use notification handlers and addressing comments in https://dart-review.googlesource.com/c/sdk/+/83520 Change-Id: I27959cba79953d95d1afd851ab6a5f137dff47db Reviewed-on: https://dart-review.googlesource.com/c/83580 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>