Public Overloads Overridable Sub Unsubscribe( _
   ByVal subscriber As Action(Of TPayload) _
) 

Dim instance As DelegateEvent(Of TPayload)
Dim subscriber As Action(Of TPayload)
 
instance.Unsubscribe(subscriber)

public virtual void Unsubscribe( 
   Action<TPayload> subscriber
)

public procedure Unsubscribe( 
    subscriber: Action
); virtual; 

public function Unsubscribe( 
   subscriber : Action
);

public: virtual void Unsubscribe( 
   Action<TPayload*>* subscriber
) 

public:
virtual void Unsubscribe( 
   Action<TPayload^>^ subscriber
)