code: def accuracy(_logits, y_batch):
      return np.mean(np.equal(np.argmax(_logits, 1), y_batch))
  
file_path: TensorLayer/examples/quantized_net/tutorial_binarynet_mnist_cnn.py
imports: import time
  import numpy
  import tensorflow
  import tensorlayer
  from tensorlayer.layers import BatchNorm, BinaryConv2d, BinaryDense, Flatten, Input, MaxPool2d, Sign
  from tensorlayer.models import Model
label_desc: Use image node_id 3 for calling a global function with example usage: accuracy(_logits, y_batch) and returns: np