code: def test_functional_none(self):
      actual = acc(self.predictions, self.targets, reduction="none")
      self.assertEqual(self.targets.shape, actual.shape)
      self.assertTrue(torch.all(self.accuracy_none == actual))
  
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 9 for calling the AccuracyTest obj's underlying member method code with example usage: obj.test_functional_none() without return types