code: def _get_jenks_config():
      
      config_file = (get_configuration_file() or
                     os.path.expanduser(os.path.join("~", CONFIG_FILE_NAME)))
  
      if not os.path.exists(config_file):
          open(config_file, 'w').close()
  
      with open(config_file, 'r') as fh:
          return JenksData(
              yaml.load(fh.read()),
              write_method=generate_write_yaml_to_file(config_file)
          )
docs: retrieve the jenks configuration object