def METHOD_NAME(self):
    """
    Descript. :
    """
    self.beam_size_slits = [9999, 9999]
    self.beam_size_aperture = [9999, 9999]
    self.beam_size_definer = [9999, 9999]
    self.beam_position = (0, 0)
    self.beam_info_dict = {}
    self.polarisation = self.get_property("polarisation", 0.99)
    self.aperture_hwobj = self.get_object_by_role("aperture")
    if self.aperture_hwobj is not None:
        self.connect(
            self.aperture_hwobj, "apertureChanged", self.aperture_pos_changed
        )
    else:
        logging.getLogger("HWR").debug("BeamInfo: Aperture hwobj not defined")
    self.slits_hwobj = self.get_object_by_role("slits")
    if self.slits_hwobj is not None:
        self.connect(self.slits_hwobj, "gapSizeChanged", self.slits_gap_changed)
    else:
        logging.getLogger("HWR").debug("BeamInfo: Slits hwobj not defined")
    if self.beam_definer is not None:
        self.connect(
            self.beam_definer, "definerPosChanged", self.definer_pos_changed
        )
    else:
        logging.getLogger("HWR").debug("BeamInfo: Beam definer hwobj not defined")
    default_beam_divergence_vertical = None
    default_beam_divergence_horizontal = None
    try:
        default_beam_divergence_vertical = int(
            self.get_property("beam_divergence_vertical")
        )
        default_beam_divergence_horizontal = int(
            self.get_property("beam_divergence_horizontal")
        )
    except Exception:
        pass
    self.default_beam_divergence = [
        default_beam_divergence_horizontal,
        default_beam_divergence_vertical,
    ]