class_docstr: Test ActionClip utils
code: def test_configs(self):
      cfg1 = action_clip.get_configs("clip_vit_b16")
      cfg2 = action_clip.get_configs("clip_vit_b32")
      self.assertTrue(cfg1["num_frames"] == 8)
      self.assertTrue(cfg2["num_frames"] == 8)
  
imports: import unittest
  import torch
  from towhee.models import action_clip
label_desc: Use image node_id 3 for calling the TestUtils obj's underlying member method code with example usage: obj.test_configs() without return types