code: def test_dropblock2d(self):
      mod = DropBlock2d()
  
      h = 224
      w = 224
      in_features = 3
      fake_input = torch.rand(1, in_features, h, w)
      output = mod(fake_input)
      out_features = 3
      gt_output_shape = torch.Size([1, out_features, h, w])
      self.assertTrue(output.shape == gt_output_shape)
  
imports: import unittest
  import torch
  from towhee.models.layers.dropblock2d import DropBlock2d
label_desc: Use image node_id 1 for calling the DropBlock2dTest obj's underlying member method code with example usage: obj.test_dropblock2d() without return types