sig
val linear : int -> int
val quad_in : int -> int
val quad_out : int -> int
val quad_inOut : int -> int
val cubic_in : int -> int
val cubic_out : int -> int
val cubic_inOut : int -> int
val quart_in : int -> int
val quart_out : int -> int
val quart_inOut : int -> int
type ease =
[ `CubicIn
| `CubicInOut
| `CubicOut
| `Linear
| `QuadIn
| `QuadInOut
| `QuadOut
| `QuartIn
| `QuartInOut
| `QuartOut ]
val f : IEase.ease -> int -> int
type ease_func = int -> int
val get_func : IEase.ease -> IEase.ease_func
val to_string : IEase.ease -> string
val of_string : string -> IEase.ease
end