code: def generate_inputs(self):
      x = numpy.array([1, 2], dtype=numpy.float32)
      return (x,)
  
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 1 for calling the TestSplitAxisNone obj's underlying member method code with example usage: obj.generate_inputs() and returns: x