code: def setUp(self) -> None:
      self.bbox = np.array([0, 0, 1, 1])
      self.bboxes = np.array([[0, 0, 1, 1], [1, 1, 2, 2]])
      self.scale = 2
  
imports: import unittest
  import numpy
  import torch
  from mmocr.utils import bbox2poly, bbox_center_distance, bbox_diag_distance, bezier2polygon, is_on_same_line, rescale_bbox, rescale_bboxes, stitch_boxes_into_lines
  from mmocr.utils.bbox_utils import bbox_jitter
label_desc: Use image node_id 1 for calling the TestRescaleBbox obj's underlying member method code with example usage: obj.setUp() without return types