code: def __del__(self):
      self.sess.close()
      self.gpu_policy.stop()
  
file_path: turicreate/src/python/turicreate/toolkits/sound_classifier/_tf_sound_classifier.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from .._tf_model import TensorFlowModel
  import turicreate.toolkits._tf_utils
  from turicreate._deps.minimal_package import _minimal_package_import_check
label_desc: Use image node_id 2 for calling the SoundClassifierTensorFlowModel obj's underlying member method code with example usage: obj.__del__() without return types