public class CallContainer<T> : IContainerChecker, 
	ICallContainerChecker
where T : class, ICallIdentifier

Public Class CallContainer(Of T As {Class, ICallIdentifier})
	Implements IContainerChecker, ICallContainerChecker

generic<typename T>
where T : ref class, ICallIdentifier
public ref class CallContainer : IContainerChecker, 
	ICallContainerChecker

type CallContainer<'T when 'T : not struct and ICallIdentifier> =  
    class
        interface IContainerChecker
        interface ICallContainerChecker
    end