code: def do_plugins(self, args, arguments):
          
          # pprint(arguments)
  
          quiet = arguments["-q"]
  
          if arguments["activate"]:
  
              Console.error("this method is not yet supported.")
              self.activate()
  
          elif arguments["list"]:
  
              if arguments["--output"] == "yaml":
                  plugins_object = setup_management(quiet=quiet)
                  print(plugins_object.config.yaml())
              elif arguments["--output"] == "json":
                  plugins_object = setup_management(quiet=quiet)
                  print(plugins_object.config)
              elif arguments["--output"] == "list":
                  plugins_object = setup_management(quiet=quiet)
                  print(plugins_object.config["cmd3"]["modules"])
              if arguments["--output"] is None:
                  plugins_object = setup_management(quiet=quiet)
                  print(plugins_object)
  
          elif arguments["add"]:
  
              plugins_object = setup_management()
              plugins_object.add(arguments["COMMAND"],
                                 dryrun=arguments["--dryrun"])
  
  
          elif arguments["delete"]:
  
              plugins_object = setup_management()
              plugins_object.delete(arguments["COMMAND"],
                                 dryrun=arguments["--dryrun"])
  
          else:
              Console.error("unknown option.")
docs: ::
  
              Usage:
                  plugins add COMMAND [--dryrun] [-q]
                  plugins delete COMMAND [--dryrun] [-q]
                  plugins list [--output=FORMAT] [-q]
                  plugins activate
  
              Arguments:
  
                  FORMAT   format is either yaml, json, or list [default=yaml]
  
              Options:
  
                  -q        stands for quiet and suppresses additional messages
  
              Description:
  
                  Please note that adding and deleting plugins requires restarting
                  cm to activate them
  
                  plugins list
  
                      lists the plugins in the yaml file
  
                  plugins add COMMAND
                  plugins delete COMMAND
  
                      cmd3 contains a ~/.cloudmesh/cmd3.yaml file.
                      This command will add/delete a plugin for a given command
                      that has been generated with cm-generate-command
                      To the yaml this command will add to the modules
  
                          - cloudmesh_COMMAND.plugins
  
                      where COMMAND is the name of the command. In case we add
                      a command and the command is out commented the comment
                      will be removed so the command is enabled.
  
                  plugins activate
  
                      NOT YET SUPPORTED.
  
              Example:
  
                  plugins add pbs