code: def add_group_name_alias(self, groupName, aliasName):
          
          return self.protocol.execute('addGroupNameAlias', groupName=groupName,
                                       aliasName=aliasName)
docs: Creates secondary name(s) for group names. Once an alias is created the
          group name cannot be used to request HTTP playback of that stream. Once
          an alias is used (requested by a client) the alias is removed. Aliases
          are designed to be used to protect/hide your source streams.
  
          :param groupName: The original group name
          :type groupName: str
  
          :param aliasName: The alias alternative to the group name
          :type aliasName: str
  
          :link: http://docs.evostream.com/ems_api_definition/addgroupnamealias