code: def print_plugins(folders, exit_code=0):
      
      modules = plugins.get_plugin_modules(folders)
      pluginclasses = sorted(plugins.get_plugin_classes(modules), key=lambda x: x.__name__)
  
      for pluginclass in pluginclasses:
          print(pluginclass.__name__)
          doc = strformat.wrap(pluginclass.__doc__, 80)
          print(strformat.indent(doc))
          print()
      sys.exit(exit_code)
docs: Print available plugins and exit.