code: def testIntTensorToString(self):
      with tf.compat.v1.Session() as sess:
          s = b"\001\002\003\004\005\006\007"
          it = dv_utils.string_to_int_tensor(s)
          x = sess.run(it)
          t = dv_utils.int_tensor_to_string(x)
          self.assertEqual(t, s)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import tensorflow
  from deepvariant import dv_utils
  from tensorflow.python.platform import gfile
  from third_party.nucleus.io import tfrecord
  from third_party.nucleus.protos import variants_pb2
  from third_party.nucleus.testing import test_utils
  from tensorflow.core.example import example_pb2
label_desc: Use image node_id 9 for calling the TFUtilsTest obj's underlying member method code with example usage: obj.testIntTensorToString() without return types