code: def test_fill_hole(self):
      self.assertTrue(
          np.allclose(fill_hole(self.input_mask_list), self.gt)
      )
      self.assertTrue(
          np.allclose(fill_hole(self.input_mask_array), self.gt)
      )
      self.assertTrue(
          np.allclose(fill_hole(self.input_mask_tensor), self.gt)
      )
  
imports: import unittest
  import numpy
  import torch
  from mmocr.utils import fill_hole
label_desc: Use image node_id 2 for calling the TestFillHole obj's underlying member method code with example usage: obj.test_fill_hole() without return types