Switch back to using absl::optional everywhere for compatibility with older versions of Abseil
Fixes #24399 PiperOrigin-RevId: 835322922
M
Mike Kruskal committed
0ce32315b1a6b4d358be44206abd84da5b63b327
Parent: 82e9677
Committed by Copybara-Service <copybara-worker@google.com>
on 11/21/2025, 8:45:34 PM