code: def forward_expected(self, inputs):
      (x,) = inputs
      return tuple(numpy.split(x, self.ys_section, self.axis))
  
imports: import unittest
  import numpy
  import six
  import chainer
  from chainer import functions
  from chainer import testing
  from chainer.testing import backend
label_desc: Use image node_id 3 for calling the TestSplitAxisNone obj's underlying member method code with example usage: obj.forward_expected(inputs) and returns: tuple