def METHOD_NAME(self, focusing_mode):
    """Sets CRL combination based on the focusing mode"""
    if focusing_mode is not None:
        self.modes = self.beam_focusing_hwobj.get_available_lens_modes(
            focusing_mode
        )
        self.set_mode(self.modes[0])
        self.set_crl_value(
            self.beam_focusing_hwobj.get_lens_combination(focusing_mode)
        )