class_docstr: First rescale the image for its shorter side to reach the short_size and
  then jitter its aspect ratio, final rescale the shape guaranteed to be
  divided by scale_divisor.
  
  Required Keys:
  
  - img
  - img_shape
  - gt_bboxes (optional)
  - gt_polygons (optional)
  
  
  Modified Keys:
  
  - img
  - img_shape
  - gt_bboxes (optional)
  - gt_polygons (optional)
  
  Added Keys:
  
  - scale
  - scale_factor
  - keep_ratio
  
  Args:
      short_size (int): Target shorter size before jittering the aspect
          ratio. Defaults to 736.
      short_size_jitter_range (tuple(float, float)): Range of the ratio used
          to jitter the target shorter size. Defaults to (0.7, 1.3).
      aspect_ratio_jitter_range (tuple(float, float)): Range of the ratio
          used to jitter its aspect ratio. Defaults to (0.9, 1.1).
      scale_divisor (int): The scale divisor. Defaults to 1.
      resize_type (str): The type of resize class to use. Defaults to
          "Resize".
      **resize_kwargs: Other keyword arguments for the ``resize_type``.
code: def __repr__(self) -> str:
      repr_str = self.__class__.__name__
      repr_str += f"(short_size = {self.short_size}, "
      repr_str += f"ratio_range = {self.ratio_range}, "
      repr_str += f"aspect_ratio_range = {self.aspect_ratio_range}, "
      repr_str += f"scale_divisor = {self.scale_divisor}, "
      repr_str += f"resize_cfg = {self.resize_cfg})"
      return repr_str
  
imports: import math
  import random
  from typing import Dict, List, Sequence, Tuple, Union
  import cv2
  import mmcv
  import numpy
  from mmcv.transforms import RandomFlip
  from mmcv.transforms.base import BaseTransform
  from mmcv.transforms.utils import avoid_cache_randomness, cache_randomness
  from shapely.geometry import Polygon
  from mmocr.registry import TRANSFORMS
  from mmocr.utils import crop_polygon, poly2bbox, poly_intersection
label_desc: Use image node_id 4 for calling the ShortScaleAspectJitter obj's underlying member method code with example usage: obj.__repr__() and returns: repr_str