from typing import Tuple


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)