code: def test_standard(self):
      top_k_acc = TopKAccuracy(3)
      actual = top_k_acc(self.predictions, self.targets)
      self.assertEqual((), actual.shape)
      np.testing.assert_almost_equal(self.top_k_acc, actual, decimal=5)
  
imports: from unittest import TestCase, skipIf
  import numpy
  import torch
  from poutyne import Accuracy, BinaryAccuracy, TopKAccuracy, acc, bin_acc, topk
label_desc: Use image node_id 2 for calling the TopKAccuracyTest obj's underlying member method code with example usage: obj.test_standard() without return types