F (travesty.Travesty.Filter_mappable.To

include Generic_types.S0

type t

The container type.

type elt

The element type.

include Filter_mappable_types.Generic_basic
  with type ('a, 'phantom) t := t
   and type 'a elt := elt

Generic_basic refers to the container type as 'a t, and the element type as 'a elt; substitute t/elt (arity-0) or 'a t/'a (arity-1) accordingly below.

include Generic_types.Generic
  with type ('a, 'phantom) t := t
  with type 'a elt := elt

val filter_map : t -> f:(elt -> elt Base.option) -> t

filter_map c ~f maps f over every t in c, discarding any items for which f returns None.