class_docstr: Unittest for hub utils.
code: def test_convert_dict(self):
      d = {"test": "<class 'torch.Tensor'>"}
      d = HubUtils.convert_dict(d)
      self.assertEqual(d["test"], "torch.Tensor")
  
imports: import unittest
  import os
  from towhee.utils.hub_utils import HubUtils
label_desc: Use image node_id 1 for calling the TestHubUtils obj's underlying member method code with example usage: obj.test_convert_dict() without return types