public Functor(FunctorMap <X, CX, Y, CY> fmap) => this._fmap = fmap;
public Traversable(FunctorMap <X, CX, Y, CY> map, Func <Func <X, CY>, CX, CY> traverse)
{
this._map = map;
this._traverse = traverse;
}
/// <summary>
/// Constructs a functor from a map
/// </summary>
/// <typeparam name="X"></typeparam>
/// <typeparam name="CX"></typeparam>
/// <typeparam name="Y"></typeparam>
/// <typeparam name="CY"></typeparam>
/// <param name="fmap"></param>
/// <returns></returns>
public static IFunctor <X, CX, Y, CY> make <X, CX, Y, CY>(FunctorMap <X, CX, Y, CY> fmap)
where CX : IContainer <X, CX>, new()
where CY : IContainer <Y, CY>, new()
=> new Functor <X, CX, Y, CY>(fmap);
