code: def test_dimensions(self):
      # Check mono and stereo.
      self._test_dimensions(self._generate_audio(c=1))
      self._test_dimensions(self._generate_audio(c=2))
  
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 7 for calling the SummaryBaseTest obj's underlying member method code with example usage: obj.test_dimensions() without return types