human
Solve the following python programming problem given the following code:
def _fixture(self) : 
    User = self.classes.User 
    canary = [] 
    def load(target, ctx) : 
        canary.append ('load') 
def refresh(target, ctx, attrs) : 
        canary.append (('refresh', attrs)) 
event.listen (User, 'load', load) 
    event.listen (load, 'refresh', refresh) 
    return canary 

    
    

    Fix the buggy line: event.listen (load, 'refresh', refresh)
assistant
#Here is Python program to fix the buggy line: event.

event.listen (User, 'refresh', refresh)