code: def test_unicode(self):
      if sys.version_info[0] == 2:
          # load from unicode string
          rnn = NeuralNetwork.load(unicode(ONSETS_RNN[0]))
          # save to unicode string
          rnn.dump(unicode(tmp_file))
  
file_path: madmom/tests/test_processors.py
imports: from __future__ import absolute_import, division, print_function
  import tempfile
  import unittest
  from madmom.ml.nn import NeuralNetwork
  from madmom.models import *
  from madmom.processors import *
label_desc: Use image node_id 1 for calling the TestProcessor obj's underlying member method code with example usage: obj.test_unicode() without return types