Deriving_Json.Json_unit
type a = unit
val t : Deriving_Json.Json_unit.a Deriving_Json.t
val write : Stdlib.Buffer.t -> Deriving_Json.Json_unit.a -> unit
val read : Deriving_Json_lexer.lexbuf -> Deriving_Json.Json_unit.a
val to_string : Deriving_Json.Json_unit.a -> string
val from_string : string -> Deriving_Json.Json_unit.a