Binding Obj-C protocols "interface list is not an interface" problem

How do I correctly bind obj-c protocols with multiple types? For example, how do I bind:

@interface MyClass : UIView<UIScrollViewDelegate, UIGestureRecognizerDelegate> {
}

Following this guide: http://docs.xamarin.com/guides/ios/advanced_topics/binding_objective-c/binding_types_reference_guide

[BaseType (typeof (BTYPE))
interface MyType [: Protocol1, Protocol2] {
     IntPtr Constructor (string foo);
}

I have:

[BaseType (typeof (UIView))]
public partial interface MyClass : UIScrollViewDelegate, UIGestureRecognizerDelegate {
}

But I'm getting this error message:

Error CS0527: Type 'MonoTouch.UIKit.UIScrollViewDelegate' in interface list is not an interface (CS0527)
Error CS0527: Type 'MonoTouch.UIKit.UIGestureRecognizerDelegate' in interface list is not an interface (CS0527)

Is it because the delegate classes? What's the correct way to do this?

Thanks.