human
Solve the following python programming problem given the following code:
def __init__(self, manager, name, channel = None, timeout = 6.0) : 
    if (channel is None) : 
        channel = getattr (flag, 'channel', None) 
self.timeout = timeout 
    self.manager = manager 
    flag = Flag () 
    @ handler (name, channel = channel) 
    def on_event(self, * args, **kwargs) : 
        flag.status = True 
self.handler = self.manager.addHandler (on_event) 
    self.flag = flag 

    
    

    Fix the buggy line: channel = getattr (flag, 'channel', None)
assistant
#Here is Python program to fix the buggy line: channel = getattr (flag, 'channel', None)
.

channel = getattr (manager, 'channel', None)