code: def delete_all(config=None):
      
      storm_ = get_storm_instance(config)
  
      try:
          storm_.delete_all_entries()
          print(get_formatted_message('all entries deleted.', 'success'))
      except Exception as error:
          print(get_formatted_message(str(error), 'error'), file=sys.stderr)
          sys.exit(1)
docs: Deletes all hosts from ssh config.