Funq registerAs

type IFoo =
   abstract Bar : int -> bool

type Foo () =
   interface IFoo with member foo.Bar(x) = true

let registerAs<'TAs>(t) =
    let mi = typeof<Funq.Container>.GetMethod("RegisterAs")
    let mi = mi.MakeGenericMethod([|t;typeof<'TAs>|])
    mi.Invoke(container, [||])
    :?> Funq.IRegistration<'TAs>

let container = new Funq.Container()
let x = registerAs<IFoo>(typeof<Foo>)
System.Diagnostics.Debug.WriteLine(x)