code: def testEmpty(self):
      predictions = np.empty([0, 5])
      target = np.empty([0], np.int32)
      self._validateInTopK(predictions, target, 2, [])
  
file_path: tensorflow-upstream/tensorflow/python/kernel_tests/math_ops/in_topk_op_test.py
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.ops import nn_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 8 for calling the InTopKTest obj's underlying member method code with example usage: obj.testEmpty() without return types