V1 (one_or_two.One_or_two.Stable.V1)

type 'a t = [

| `One of 'a

| `Two of 'a * 'a

]

val to_yojson : ( 'a -> Yojson.Safe.t ) -> 'a t -> Yojson.Safe.t

val of_yojson : 
  ( Yojson.Safe.t -> 'a Ppx_deriving_yojson_runtime.error_or ) ->
  Yojson.Safe.t ->
  'a t Ppx_deriving_yojson_runtime.error_or

include Core_kernel.Bin_prot.Binable.S1 with type 'a t := 'a t

val bin_shape_t : Bin_prot.Shape.t -> Bin_prot.Shape.t

val bin_size_t : ( 'a, 'a t ) Bin_prot.Size.sizer1

val bin_write_t : ( 'a, 'a t ) Bin_prot.Write.writer1

val bin_read_t : ( 'a, 'a t ) Bin_prot.Read.reader1

val __bin_read_t__ : ( 'a, int -> 'a t ) Bin_prot.Read.reader1

val bin_writer_t : ( 'a, 'a t ) Bin_prot.Type_class.S1.writer

val bin_reader_t : ( 'a, 'a t ) Bin_prot.Type_class.S1.reader

val bin_t : ( 'a, 'a t ) Bin_prot.Type_class.S1.t

val compare : ( 'a -> 'a -> int ) -> 'a t -> 'a t -> int

val equal : ( 'a -> 'a -> bool ) -> 'a t -> 'a t -> bool

val hash_fold_t : 
  ( Ppx_hash_lib.Std.Hash.state -> 'a -> Ppx_hash_lib.Std.Hash.state ) ->
  Ppx_hash_lib.Std.Hash.state ->
  'a t ->
  Ppx_hash_lib.Std.Hash.state

include Ppx_sexp_conv_lib.Sexpable.S1 with type 'a t := 'a t

val t_of_sexp : ( Sexplib0__.Sexp.t -> 'a ) -> Sexplib0__.Sexp.t -> 'a t

val sexp_of_t : ( 'a -> Sexplib0__.Sexp.t ) -> 'a t -> Sexplib0__.Sexp.t

val __versioned__ : unit

val to_latest : ( 'a -> 'b ) -> 'a t -> 'b t

val of_latest : 
  ( 'a -> ( 'b, 'err ) Core_kernel.Result.t ) ->
  'a t ->
  ( 'b t, 'err ) Core_kernel.Result.t