code: def generate_inputs(self):
      x = numpy.zeros(self.in_shape, dtype=numpy.float32)
      x[:, :, 0, 0] = 1
      x[:, :, 1, 0] = 2
      x[:, :, 0, 1] = 3
      x[:, :, 1, 1] = 4
      return (x,)
  
imports: import unittest
  import numpy
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 1 for calling the TestResizeImagesForwardUpScaleBilnear obj's underlying member method code with example usage: obj.generate_inputs() and returns: x