code: def setUp(self):
      frm, to, prob = list(zip(*TRANSITIONS))
      self.tm = TransitionModel.from_dense(to, frm, prob)
  
imports: from __future__ import absolute_import, division, print_function
  import sys
  import unittest
  from madmom.ml.hmm import *
label_desc: Use image node_id 1 for calling the TestTransitionModelClass obj's underlying member method code with example usage: obj.setUp() without return types