code: def __del__(self):
      self.sess.close()
      self.gpu_policy.stop()
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import numpy
  from .._tf_model import TensorFlowModel
  from turicreate._deps.minimal_package import _minimal_package_import_check
  import turicreate.toolkits._tf_utils
label_desc: Use image node_id 3 for calling the ODTensorFlowModel obj's underlying member method code with example usage: obj.__del__() without return types