code: def setUp(self) -> None:
      self.input_mask_list = [
          [0, 1, 1, 1, 0],
          [0, 1, 0, 1, 0],
          [0, 1, 1, 1, 0],
      ]
      self.input_mask_array = np.array(self.input_mask_list)
      self.input_mask_tensor = torch.tensor(self.input_mask_list)
      self.gt = np.array(
          [[0, 1, 1, 1, 0], [0, 1, 1, 1, 0], [0, 1, 1, 1, 0]]
      )
  
imports: import unittest
  import numpy
  import torch
  from mmocr.utils import fill_hole
label_desc: Use image node_id 1 for calling the TestFillHole obj's underlying member method code with example usage: obj.setUp() without return types