Public Shared Function Return( _
   ByVal result As Object _
) As CoroutineOperation

Dim result As Object
Dim value As CoroutineOperation
 
value = Coroutine.Return(result)

public static CoroutineOperation Return( 
   object result
)

public:
static CoroutineOperation^ Return( 
   Object^ result
) 

public void SampleCoroutineWithResult() {
   var op = Coroutine.Start(CoroutineWithResult);
   op.Completed += (s, e) => {
     MessageBox.Show(e.Result.ToString());
   };
 }

 public IEnumerable<INotifyCompleted> CoroutineWithResult() {

   // A few async actions
   yield return _em1.Customers.Take(3).ExecuteAsync();
   
   yield return _em1.Areas.Take(2).ExecuteAsync();

   // Return something to the caller (showing that the result
   // returned to caller is whatever you want it to be).
   yield return Coroutine.Return("Hello World");
 }