code: def generate_inputs(self):
      x = numpy.arange(42, dtype=numpy.float32).reshape(2, 7, 3)
      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 TestSplitAxisForceArray obj's underlying member method code with example usage: obj.generate_inputs() and returns: x