code: def test_label_smoothing_function_fp16(self):
      self._test_label_smoothing_function(torch.half)
  
file_path: apex/apex/contrib/test/xentropy/test_label_smoothing.py
imports: import unittest
  import random
  import time
  import numpy
  import torch
label_desc: Use image node_id 5 for calling the LabelSmoothingTest obj's underlying member method code with example usage: obj.test_label_smoothing_function_fp16() without return types