code: def vflip_bboxes_helper(bbox: Tuple, **kwargs) -> Tuple:
      """
      Analogous to hflip, when the src image is vertically flipped, the bounding box also
      gets vertically flipped
      """
      left_factor, upper_factor, right_factor, lower_factor = bbox
      return (
          left_factor,
          1 - lower_factor,
          right_factor,
          1 - upper_factor,
      )
  
file_path: AugLy/augly/image/utils/bboxes.py
imports: import math
  from typing import Callable, List, Optional, Tuple
  import numpy
  from augly.image import utils
  from PIL import Image, ImageDraw
label_desc: Use image node_id 12 for calling a global function with example usage: vflip_bboxes_helper(bbox) and returns: left_factor,  unknown,  right_factor,  unknown