Universal Plugin Manager - API
| Either<L, R> | A disjoint union type typically used as an alternative to Option where by convention the
left value contains an error and the right is akin to "some". |
| Either.LeftProjection<L, R> | |
| Either.RightProjection<L, R> | |
| Option<A> | This class is deprecated. It's 2021. Just use java.util.Optional. Plus there's the same class in com.atlassian.fugue |
| Options | This class is deprecated. since 5.0, it will be removed in 6.0; |
| Pair<A, B> | A tuple of size 2. |