package travesty

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package travesty
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With_errors specialises On_monad to the error_monad.

include Bi_traversable_types.Basic_generic_on_applicative with type ('l, 'r) t := 'l t with type 'l left := 'l with type 'r right := right with module M := Base.Or_error
include Generic_types.Bi_generic with type ('l, 'r) t := 'l t with type 'l left := 'l with type 'r right := right
val bi_map_m : 'l1 t -> left:('l1 -> 'l2 Base.Or_error.t) -> right:(right -> right Base.Or_error.t) -> 'l2 t Base.Or_error.t

bi_map_m c ~left ~right traverses with left over every 'l1 left, and right over every 'r1 right, in c.

val map_left_m : 'l1 t -> f:('l1 -> 'l2 Base.Or_error.t) -> 'l2 t Base.Or_error.t

map_left_m c ~f monadically traverses over the left type of c only, using f.

val map_right_m : 'l t -> f:(right -> right Base.Or_error.t) -> 'l t Base.Or_error.t

map_right_m c ~f monadically traverses f over the right type of c only, using f.

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