def METHOD_NAME(self):
    """Set default class and filter for Octave toolboxes."""
    # build and install additional packages with OctavePackage easyblock
    self.cfg['exts_defaultclass'] = 'OctavePackage'
    self.cfg['exts_filter'] = EXTS_FILTER_OCTAVE_PACKAGES
    super(EB_Octave, self).METHOD_NAME()