code: def _opNormalizeMoments(self, counts, mean_ss, variance_ss, shift):
      return nn_impl.normalize_moments(
          counts, mean_ss, variance_ss, shift
      )
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  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 gen_nn_ops
  from tensorflow.python.ops import gradient_checker
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn_impl
  import tensorflow.python.ops.nn_grad
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the NormalizeMomentsTest obj's underlying member method code with example usage: obj._opNormalizeMoments(counts, mean_ss, variance_ss, shift) and returns: nn_impl