code: def generate_inputs(self):
      shape = self.shape
      dtype = self.dtype
      x = numpy.arange(numpy.prod(shape), dtype=dtype).reshape(shape)
      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 TestSplitAxis obj's underlying member method code with example usage: obj.generate_inputs() and returns: x