human
Solve the following python programming problem given the following code:
def _listener_fixture(self, **kw) : 
    canary = [] 
    def listener(name) : 
        def go(* arg, **kw) : 
            canary.append (name) 
return go 
sess = Session (** kw) 
    for evt in ['after_transaction_create', 'after_transaction_end', 'before_commit', 'after_commit', 'after_rollback', 'after_soft_rollback', 'before_flush', 'after_flush', 'after_flush_postexec', 'after_begin', 'before_attach', 'after_attach', 'after_bulk_update', 'after_bulk_delete'] : 
        event.listen (sess, evt, listener (sess)) 
return (sess, canary) 

    
    

    Fix the buggy line: event.listen (sess, evt, listener (sess))
assistant
#Here is Python code to fix the buggy line: event.

event.listen (sess, evt, listener (evt))