code: def test_repr(self):
      transform = RandomCrop(min_side_ratio=0.4)
      self.assertEqual(
          repr(transform), ("RandomCrop(min_side_ratio = 0.4)")
      )
  
imports: import copy
  import unittest
  import unittest.mock
  import numpy
  from mmocr.datasets.transforms import FixInvalidPolygon, RandomCrop, RandomRotate, RemoveIgnored, Resize
  from mmocr.utils import poly2shapely
label_desc: Use image node_id 4 for calling the TestRandomCrop obj's underlying member method code with example usage: obj.test_repr() without return types