so I guess in this scenario we'd need to have a se...
# developmenth
happy-kitchen-89482
10/25/2019, 10:37 PMso I guess in this scenario we'd need to have a sentinel value that is of the
Fooa
aloof-angle-91616
10/25/2019, 10:40 PMthis is what
@unionaloof-angle-91616
10/25/2019, 10:40 PMnot sure if i'm misunderstanding the use case
aloof-angle-91616
10/25/2019, 10:41 PMas in, i have, this week, when implementing `@rule`s, have converted ones returning
Optional[T]aloof-angle-91616
10/25/2019, 10:41 PMespecially after https://github.com/pantsbuild/pants/pull/8542, but i've been thinking more about that
aloof-angle-91616
10/25/2019, 10:42 PMreturning
Optional[T]aloof-angle-91616
10/25/2019, 10:42 PMi think i would prefer the engine in general to be able to support things that make sense in normal python