Support sumOption in composite semigroups #67
Description
Each bundle is in the form of Seq[Array[B]]. We can probably wrap it in a view of Seq[B] for each individual column and use the base semigroup's sumOption.
{{ message }}
Each bundle is in the form of Seq[Array[B]]. We can probably wrap it in a view of Seq[B] for each individual column and use the base semigroup's sumOption.