How to Verify Multiple calls ?

Hi,
I have code in my application looks like below.

class Base
{
public void dummyFunc()
{

}

public void callFuncTwice()
{
dummyFunc();
dummyFunc();
}
}

[TestMethod()]
public void TestMultipleMethodCalls()
{
Base baseObj = Isolate.Fake.Instance<Base>();
Isolate.WhenCalled(() => baseObj.callFuncTwice()).CallOriginal();

baseObj.callFuncTwice();

// how do you verify that dummyFunc was called twice
Isolate.Verify.WasCalledWithAnyArguments(() => baseObj.dummyFunc());
}

In this scenario how can I assure that dummyFunc() was called twice ?

Thanks & Regards,
James