code: def test_process(self):
      beats = self.processor(sample_blstm_act)
      self.assertTrue(
          np.allclose(
              beats, [0.11, 0.45, 0.79, 1.13, 1.47, 1.81, 2.15, 2.49]
          )
      )
  
imports: from __future__ import absolute_import, division, print_function
  import unittest
  from os.path import join
  from madmom.ml.hmm import HiddenMarkovModel
  from madmom.audio.signal import FramedSignal
  from madmom.features import Activations
  from madmom.features.beats import *
  from madmom.features.beats_hmm import *
  from .None import AUDIO_PATH, ACTIVATIONS_PATH
label_desc: Use image node_id 2 for calling the TestBeatTrackingProcessorClass obj's underlying member method code with example usage: obj.test_process() without return types