code: def _set_untagged(self, v, load=False):
      
      if hasattr(v, "_utype"):
        v = v._utype(v)
      try:
        t = YANGDynClass(v,base=untagged.untagged, is_container='container', presence=False, yang_name="untagged", rest_name="untagged", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Configure untagged VLAN on this logical interface', u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-lif', defining_module='brocade-lif', yang_type='container', is_config=True)
      except (TypeError, ValueError):
        raise ValueError({
            'error-string': """untagged must be of a type compatible with container""",
            'defined-type': "container",
            'generated-type': """YANGDynClass(base=untagged.untagged, is_container='container', presence=False, yang_name="untagged", rest_name="untagged", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Configure untagged VLAN on this logical interface', u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-lif', defining_module='brocade-lif', yang_type='container', is_config=True)""",
          })
  
      self.__untagged = t
      if hasattr(self, '_set'):
        self._set()
docs: Setter method for untagged, mapped from YANG variable /interface/port_channel/logical_interface/port_channel/pc_cmd_container_dummy/service_instance_vlan_cmds_dummy_container/get_untagged_vlan_dummy/untagged (container)
      If this variable is read-only (config: false) in the
      source YANG file, then _set_untagged is considered as a private
      method. Backends looking to populate this variable should
      do so via calling thisObj._set_untagged() directly.