def required.right
import bend-kit-regex@0.8.0.0/regex.bend as Regeximport Base
541# A byte that every match must contain. Optional branches and character classes have none.
542def required.right(b: Maybe<&2, U32>, a: Maybe<&2, U32>) -> Maybe<&2, U32>:
543 match b:
544 case Some{c}:
545 Some{c}
546 case None{}:
547 a