Pyhaystack _ error 1

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TypeError                                 Traceback (most recent call last)
C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\ops\grid.py in _do_auth_attempt(self, event)
    116         try:
--> 117             self._session.authenticate(callback=self._on_authenticate)
    118         except: # Catch all exceptions to pass to caller.

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\session.py in authenticate(self, callback)
     97                 # Already done
---> 98                 return callback(auth_op)
     99             else:

TypeError: _on_authenticate() takes 1 positional argument but 2 were given

During handling of the above exception, another exception occurred:

TypeError                                 Traceback (most recent call last)
C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\ops\grid.py in _do_auth_attempt(self, event)
    116         try:
--> 117             self._session.authenticate(callback=self._on_authenticate)
    118         except: # Catch all exceptions to pass to caller.

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\session.py in authenticate(self, callback)
     97                 # Already done
---> 98                 return callback(auth_op)
     99             else:

TypeError: _on_authenticate() takes 1 positional argument but 2 were given

During handling of the above exception, another exception occurred:

TypeError                                 Traceback (most recent call last)
<ipython-input-11-06b6818d43ec> in <module>()
      1 site = session.read(filter_expr='site')
----> 2 site.result

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\util\state.py in result(self)
     86 
     87         if isinstance(self._result, AsynchronousException):
---> 88             self._result.reraise()
     89 
     90         return deepcopy(self._result)

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\util\asyncexc.py in reraise(self)
     27 
     28     def reraise(self):
---> 29         reraise(*self._exc_info)

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\six.py in reraise(tp, value, tb)
    684         if value.__traceback__ is not tb:
    685             raise value.with_traceback(tb)
--> 686         raise value
    687 
    688 else:

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\ops\grid.py in _do_auth_attempt(self, event)
    115         """
    116         try:
--> 117             self._session.authenticate(callback=self._on_authenticate)
    118         except: # Catch all exceptions to pass to caller.
    119             self._state_machine.exception(result=AsynchronousException())

C:\Users\ctremblay.SERVISYS\AppData\Local\Continuum\Anaconda3\lib\site-packages\pyhaystack\client\session.py in authenticate(self, callback)
     96             if auth_op.is_done:
     97                 # Already done
---> 98                 return callback(auth_op)
     99             else:
    100                 auth_op.done_sig.connect(callback)

TypeError: _on_authenticate() takes 1 positional argument but 2 were given