Return a Prevent object when you want to prevent the wrapped function from executing, but want the remaining listeners to execute. Useful for Do.before subscribers.
Do.Preventmsg
                    
                
                
                Defined in
                
            
        
        
        event-custom/js/event-do.js:351
        
        
msg
                        String
                    
                    
                    (optional) Explanation of why the termination was done