code: def testGetTensorsValid(self):
      with ops.Graph().as_default():
          in_tensor = array_ops.placeholder(
              dtype=dtypes.float32, shape=[1, 16, 16, 3]
          )
          _ = in_tensor + in_tensor
          sess = session.Session()
  
      tensors = util.get_tensors_from_tensor_names(
          sess.graph, ["Placeholder"]
      )
      self.assertEqual("Placeholder:0", tensors[0].name)
  
imports: import os
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow.lite.python import util
  from tensorflow.lite.tools.flatbuffer_utils import read_model
  from tensorflow.python.client import session
  from tensorflow.python.framework import convert_to_constants
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import while_loop
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the TensorFunctionsTest obj's underlying member method code with example usage: obj.testGetTensorsValid() without return types