parameters: (self, ov)
docstring: Unregister an overlapped object.
  
          Call this method when its future has been cancelled. The event can
          already be signalled (pending in the proactor event queue). It is also
          safe if the event is never signalled (because it was cancelled).
docstring_summary: Unregister an overlapped object.
docstring_tokens: Unregister an overlapped object .
function: def _unregister(self, ov):
          """Unregister an overlapped object.
  
          Call this method when its future has been cancelled. The event can
          already be signalled (pending in the proactor event queue). It is also
          safe if the event is never signalled (because it was cancelled).
          """
          self._check_closed()
          self._unregistered.append(ov)
function_tokens: def _unregister ( self , ov ) : self . _check_closed ( ) self . _unregistered . append ( ov )