def _set_cos_traffic_class(self, v, load=False):
    """
    Setter method for cos_traffic_class, mapped from YANG variable /qos/map/cos_traffic_class (list)
    If this variable is read-only (config: false) in the
    source YANG file, then _set_cos_traffic_class is considered as a private
    method. Backends looking to populate this variable should
    do so via calling thisObj._set_cos_traffic_class() directly.
    """
    if hasattr(v, "_utype"):
      v = v._utype(v)
    try:
      t = YANGDynClass(v,base=YANGListType("name",cos_traffic_class.cos_traffic_class, yang_name="cos-traffic-class", rest_name="cos-traffic-class", parent=self, is_container='list', user_ordered=False, path_helper=self._path_helper, yang_keys='name', extensions={u'tailf-common': {u'info': u'Configure CoS-to-Traffic-Class map', u'cli-no-key-completion': None, u'cli-full-no': None, u'cli-suppress-list-no': None, u'cli-suppress-key-abbreviation': None, u'cli-full-command': None, u'callpoint': u'cos_traffic_class', u'cli-mode-name': u'cos-traffic-class-$(name)'}}), is_container='list', yang_name="cos-traffic-class", rest_name="cos-traffic-class", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Configure CoS-to-Traffic-Class map', u'cli-no-key-completion': None, u'cli-full-no': None, u'cli-suppress-list-no': None, u'cli-suppress-key-abbreviation': None, u'cli-full-command': None, u'callpoint': u'cos_traffic_class', u'cli-mode-name': u'cos-traffic-class-$(name)'}}, namespace='urn:brocade.com:mgmt:brocade-qos-mls', defining_module='brocade-qos-mls', yang_type='list', is_config=True)
    except (TypeError, ValueError):
      raise ValueError({
          'error-string': """cos_traffic_class must be of a type compatible with list""",
          'defined-type': "list",
          'generated-type': """YANGDynClass(base=YANGListType("name",cos_traffic_class.cos_traffic_class, yang_name="cos-traffic-class", rest_name="cos-traffic-class", parent=self, is_container='list', user_ordered=False, path_helper=self._path_helper, yang_keys='name', extensions={u'tailf-common': {u'info': u'Configure CoS-to-Traffic-Class map', u'cli-no-key-completion': None, u'cli-full-no': None, u'cli-suppress-list-no': None, u'cli-suppress-key-abbreviation': None, u'cli-full-command': None, u'callpoint': u'cos_traffic_class', u'cli-mode-name': u'cos-traffic-class-$(name)'}}), is_container='list', yang_name="cos-traffic-class", rest_name="cos-traffic-class", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Configure CoS-to-Traffic-Class map', u'cli-no-key-completion': None, u'cli-full-no': None, u'cli-suppress-list-no': None, u'cli-suppress-key-abbreviation': None, u'cli-full-command': None, u'callpoint': u'cos_traffic_class', u'cli-mode-name': u'cos-traffic-class-$(name)'}}, namespace='urn:brocade.com:mgmt:brocade-qos-mls', defining_module='brocade-qos-mls', yang_type='list', is_config=True)""",
        })

    self.__cos_traffic_class = t
    if hasattr(self, '_set'):
      self._set()
Setter method for cos_traffic_class, mapped from YANG variable /qos/map/cos_traffic_class (list)
    If this variable is read-only (config: false) in the
    source YANG file, then _set_cos_traffic_class is considered as a private
    method. Backends looking to populate this variable should
    do so via calling thisObj._set_cos_traffic_class() directly.