code: def settings(self):
          
          # Shallow copy first
          cloned_setting = self._settings.copy()
          # Don't want clone to link to same RT containers
          cloned_setting[IMPORT_RTS] = self.import_rts
          cloned_setting[EXPORT_RTS] = self.export_rts
          cloned_setting[SITE_OF_ORIGINS] = self.soo_list
          return cloned_setting
docs: Returns a copy of current settings.
  
          As some of the attributes are themselves containers, we clone the
          settings to provide clones for those containers as well.