code: def _get_ulp16(x):
      abs_x = np.abs(x)
      mask = abs_x > 2.0 ** (-14)
      abs_x = mask * abs_x + (1 - mask) * 2.0 ** (-14)
      k = np.floor(np.log2(abs_x))
      return 2.0 ** (k - 10)
  
file_path: pytorch/caffe2/python/fakelowp/test_utils.py
imports: import sys
  import numpy
label_desc: Use image node_id 8 for calling a global function with example usage: _get_ulp16(x) and returns: unknown