Module One_or_two.Or_error

val sequence : [ `One of 'a Core_kernel.Or_error.t | `Two of 'a Core_kernel.Or_error.t * 'a Core_kernel.Or_error.t ] -> [ `One of 'a | `Two of 'a * 'a ] Core_kernel.Or_error.t
val map : [ `One of 'a | `Two of 'a * 'a ] -> f:( 'a -> 'b Core_kernel.Or_error.t ) -> [ `One of 'b | `Two of 'b * 'b ] Core_kernel.Or_error.t
val fold : [ `One of 'a | `Two of 'a * 'a ] -> init:'accum -> f:( 'accum -> 'a -> 'accum Core_kernel.Or_error.t ) -> 'accum Core_kernel.Or_error.t