Get the latest status information from device.

        Method executes the update method for the current receiver type.

def update(self):
        """
        Get the latest status information from device.

        Method executes the update method for the current receiver type.
        """
        if self._receiver_type == AVR_X_2016.type:
            return self._update_avr_2016()
        else:
            return self._update_avr()