code: def _test_dimensions(self, audio):
      pb = self.audio("k488", audio, 44100)
      self.assertEqual(1, len(pb.value))
      results = tensor_util.make_ndarray(pb.value[0].tensor)
      for i, (encoded, _) in enumerate(results):
          decoded, _ = audio_ops.decode_wav(encoded)
          self.assertEqual(audio[i].shape, decoded.shape)
  
imports: import glob
  import os
  import numpy
  import tensorflow
  from tensorboard.compat import tf2
  from tensorboard.plugins.audio import metadata
  from tensorboard.plugins.audio import summary
  from tensorboard.util import tensor_util
label_desc: Use image node_id 6 for calling the SummaryBaseTest obj's underlying member method code with example usage: obj._test_dimensions(audio) without return types