code: def test_forward_no_reduction_gpu_no_cudnn(self):
      with chainer.using_config("use_cudnn", "never"):
          self.check_forward_no_reduction(
              cuda.to_gpu(self.x), cuda.to_gpu(self.t)
          )
  
imports: import math
  import unittest
  import numpy
  import six
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
  from chainer import utils
label_desc: Use image node_id 9 for calling the TestSigmoidCrossEntropy obj's underlying member method code with example usage: obj.test_forward_no_reduction_gpu_no_cudnn() without return types