code: def testExample2(self):
      inputs = [[2.2, 4.4, 1.1], [5.5, 3.3, 6.6]]
      self._validateNthElement(
          inputs, dtypes.float64, 2, False, [4.4, 6.6]
      )
      self._validateNthElement(
          inputs, dtypes.float64, 2, True, [1.1, 3.3]
      )
  
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 3 for calling the NthElementTest obj's underlying member method code with example usage: obj.testExample2() without return types