Traversable containers, monad extensions, and more
type 'a t

The type of the container to map over.

include Generic_basic with type 'a t := 'a t and type 'a elt := 'a

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 t := 'a t with type 'a elt := 'a
val filter_map : 'a t -> f:( 'a -> 'b Base.option ) -> 'b t

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