code: def test_model(self):
      p = rank_correction(measure="legs", n=2)
      self.assertEqual(p.shape, (1, 2))
  
imports: import unittest
  from towhee.models.vis4mer.utils import rank_correction
label_desc: Use image node_id 1 for calling the TransitionTest obj's underlying member method code with example usage: obj.test_model() without return types