Defining delegate as parameter type in class diagram?

Hi guys,

I’m using Visual Paradigm to model a C# application.
In one of my classes, I want to define one of the parameters of an operation as a delegate. i.e. I want the parameter to be a reference to an operation, rather than a ‘normal’ data type, or a class / struct.

…any idea how I can do this in VP-UML? Or can I do it?