Module V.I
val (<|>) : 'a Option.Alternative.t -> 'a Option.Alternative.t -> 'a Option.Alternative.tval (<$>) : ('a -> 'b) -> 'a Option.Alternative.t -> 'b Option.Alternative.tval (<@>) : 'a Option.Alternative.t -> ('a -> 'b) -> 'b Option.Alternative.tval (<*>) : ('a -> 'b) Option.Alternative.t -> 'a Option.Alternative.t -> 'b Option.Alternative.t