code: def sg_arg():
      r
      if not tf.app.flags.FLAGS.__dict__['__parsed']:
          tf.app.flags.FLAGS._parse_flags()
      return tf.sg_opt(tf.app.flags.FLAGS.__dict__['__flags'])
docs: r"""Gets current command line options
  
      Returns:
        tf.sg_opt instance that is updated with current commandd line options.