package travesty

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Basic1_left is the basic signature of an arity-1 bi-mappable type with a floating left type and fixed right type.

Functions mapped over arity-1 types may change the left element type, but not the right.

include Types_intf.Bi_left
type 'l t

Partially fixed type of containers.

type right

Fixed type of right elements.

include Basic_generic with type ('l, 'r) t := 'l t and type 'l left := 'l and type 'r right := right
include Types_intf.Bi_generic with type ('l, 'r) t := 'l t with type 'l left := 'l with type 'r right := right
val bi_map : 'l1 t -> left:('l1 -> 'l2) -> right:(right -> right) -> 'l2 t

bi_map c ~left ~right maps left over every 'l1 left, and right over every 'r1 right, in c.