`sig
val zero : int32
val one : int32
val minus_one : int32
external neg : int32 -> int32 = "%int32_neg"
external add : int32 -> int32 -> int32 = "%int32_add"
external sub : int32 -> int32 -> int32 = "%int32_sub"
external mul : int32 -> int32 -> int32 = "%int32_mul"
external div : int32 -> int32 -> int32 = "%int32_div"
external rem : int32 -> int32 -> int32 = "%int32_mod"
val succ : int32 -> int32
val pred : int32 -> int32
val abs : int32 -> int32
val max_int : int32
val min_int : int32
external logand : int32 -> int32 -> int32 = "%int32_and"
external logor : int32 -> int32 -> int32 = "%int32_or"
external logxor : int32 -> int32 -> int32 = "%int32_xor"
val lognot : int32 -> int32
external shift_left : int32 -> int -> int32 = "%int32_lsl"
external shift_right : int32 -> int -> int32 = "%int32_asr"
external shift_right_logical : int32 -> int -> int32 = "%int32_lsr"
external of_int : int -> int32 = "%int32_of_int"
external to_int : int32 -> int = "%int32_to_int"
external of_float : float -> int32 = "int32_of_float"
external to_float : int32 -> float = "int32_to_float"
external of_string : string -> int32 = "int32_of_string"
val to_string : int32 -> string
external format : string -> int32 -> string = "int32_format"
type t = int32
val compare : Int32.t -> Int32.t -> int
end`