code: def update_restrictions(self, ):
          
          self.set_restricted(self.reference, self.fetch_reference_restriction())
          self.set_restricted(self.load, self.fetch_load_restriction())
          self.set_restricted(self.unload, self.fetch_unload_restriction())
          self.set_restricted(self.import_reference, self.fetch_import_ref_restriction())
          self.set_restricted(self.import_file, self.fetch_import_f_restriction())
          self.set_restricted(self.replace, self.fetch_replace_restriction())
          self.set_restricted(self.delete, self.fetch_delete_restriction())
docs: Update all restrictions for the common :class:`Reftrack` actions.
  
          Update restrictions for:
  
            * :meth:`Reftrack.reference`
            * :meth:`Reftrack.load`
            * :meth:`Reftrack.unload`
            * :meth:`Reftrack.import_reference`
            * :meth:`Reftrack.import_file`
            * :meth:`Reftrack.replace`
  
          :returns: None
          :rtype: None
          :raises: None