@Override
    public void visitMembers(ObjectVisitor visitor) {
        super.visitMembers(visitor);
        visitor.visit("waitTime", waitTime);
        visitor.visit("busyWait", busyWait);
    }
Constructs an instance of this class with given argument and wait parameters.

@param arg      The argument for this function.
@param waitTime The time to wait before executing expression.
@param busyWait true if busy wait, false if not.
searchlib/src/main/java/com/yahoo/searchlib/expression/DebugWaitFunctionNode.java