code: def _validateNthElement(
      self, inputs, dtype, n, reverse, expected_values
  ):
      np_expected_values = np.array(expected_values)
      with self.cached_session(use_gpu=False) as sess:
          inputs_op = ops.convert_to_tensor(inputs, dtype=dtype)
          values_op = nn_ops.nth_element(inputs_op, n, reverse=reverse)
          values = self.evaluate(values_op)
  
          self.assertShapeEqual(np_expected_values, values_op)
          self.assertAllClose(np_expected_values, values)
  
imports: import numpy
  from tensorflow.python.eager import backprop
  from tensorflow.python.eager import context
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import nn_ops
  import tensorflow.python.ops.nn_grad
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the NthElementTest obj's underlying member method code with example usage: obj._validateNthElement(inputs, dtype, n, reverse, expected_values) without return types