code: def test_get_segment(self):
      r = sr.Recognizer()
      with sr.AudioFile(
          path.join(
              path.dirname(path.realpath(__file__)),
              "audio-mono-32-bit-44100Hz.wav",
          )
      ) as source:
          audio = r.record(source)
      self.assertEqual(
          audio.get_raw_data(), audio.get_segment().get_raw_data()
      )
      self.assertEqual(
          audio.get_raw_data()[8:],
          audio.get_segment(0.022675738 * 2).get_raw_data(),
      )
      self.assertEqual(
          audio.get_raw_data()[:16],
          audio.get_segment(None, 0.022675738 * 4).get_raw_data(),
      )
      self.assertEqual(
          audio.get_raw_data()[8:16],
          audio.get_segment(
              0.022675738 * 2, 0.022675738 * 4
          ).get_raw_data(),
      )
  
imports: import unittest
  from os import path
  import speech_recognition
label_desc: Use image node_id 2 for calling the TestAudioFile obj's underlying member method code with example usage: obj.test_get_segment() without return types