human
Solve the following python programming problem given the following code:
def ping(log, value) : 
    def pong(klass) : 
        log.append ((value, klass)) 
        return [klass] 
addClassAdvisor (log) 

    
    

    Fix the buggy line: addClassAdvisor (log)
assistant
#Here is Python program to fix the buggy line: addClassAdvisor (log)
.

addClassAdvisor (def pong()