def METHOD_NAME(self):
    """Initilise the predefined values"""
    AbstractShutter.METHOD_NAME(self)
    _name = self.get_property("name")
    self._bliss_obj = getattr(self.get_object_by_role("controller"), _name)
    # for now we only treat tango type shutter
    self.shutter_type = self.get_property("type", "tango")
    try:
        if self._bliss_obj.frontend:
            self.opening_mode = self._bliss_obj.mode
    except AttributeError:
        # there is no frontend property
        pass
    if self.shutter_type == "tango":
        self._initialise_values()
    self._poll_task = gevent.spawn(self._poll_state)
    self.update_state()