code: def test_tsm_mobilenetv2_diff(self):
      num_class = 2
      num_segments = 3
      modality = "RGBDiff"
      base_model = "mobilenetv2"
      is_shift = True
      non_local = True
      pretrain = False
      input_tensor = torch.randn(54, 1, 32, 32)
      model = TSN(
          num_class=num_class,
          num_segments=num_segments,
          modality=modality,
          base_model=base_model,
          is_shift=is_shift,
          non_local=non_local,
          pretrain=pretrain,
      )
      out = model(input_tensor)
      self.assertTrue(out.shape == torch.Size([1, 2]))
  
file_path: towhee/tests/unittests/models/tsm/test_tsm.py
imports: import torch
  import unittest
  from towhee.models.tsm.tsm import TSN
label_desc: Use image node_id 6 for calling the TSMTest obj's underlying member method code with example usage: obj.test_tsm_mobilenetv2_diff() without return types