callback called wrong?

[molecular]

nick@dose  (master) ~/py-fritz-monitor\> python3 example.py
Success connecting to fritz.box on port: 1012
Listening for calls
Traceback (most recent call last):
  File "example.py", line 27, in <module>
    call.parse("09.03.14 21:51:56;CALL;0;12;453423;04829401845;SIP0;") #Simulates outgoing call
  File "/home/nick/py-fritz-monitor/call_monitor.py", line 76, in parse
    self.call_callback(int(line[2]), "outgoing", self.call_handler[int(line[2])])
  File "/home/nick/py-fritz-monitor/call_monitor.py", line 35, in call_callback
    self.callback(id, action, details)
TypeError: my_cb() missing 1 required positional argument: 'details'

fixed by changing call_monitor.py:20 to

self.callback(self, id, action, details)

(adding the "self")