Josh Cummings b1a50a25b6 Check If toBuilder Is Implemented
Since RC1 is right around the corner, let's change the API
footprint as little as possible by using reflection to check
if a class has declared toBuilder themselves. If they have, we
can assume that that class's builder will produce that class.

Issue gh-18052
2025-10-16 13:41:45 -06:00
..
2025-09-12 16:20:43 -04:00