code: def initialize(self, argv=None):
          
          # Parse configuration items on command line.
          self.parse_command_line(argv)
          if self.config_file:
              self.load_config_file(self.config_file)
  
          # Initialize objects to interact with.
          self.kubeconf = KubeConf()
          self.cluster_list = ClusterList(kubeconf=self.kubeconf)
          self.hub_list = HubList(kubeconf=self.kubeconf)
docs: Handle specific configurations.