swift

e35440ca - [region-isolation] Some small gardening updates in preparation for the next commit.

[region-isolation] Some small gardening updates in preparation for the next commit. Specifically, I added a few helper methods and improved the logging printing. This all makes the next commit a more focused commit. (cherry picked from commit 9bfb3b7ee72f797663d91e7a308e30bbf9ab48cf)