code: def forward(self, x, t):
      assert not isinstance(x, chainer.Variable)
      assert not isinstance(t, chainer.Variable)
  
      self.call_called += 1
  
      h = chainer.functions.relu(self.conv(x))
      y = self.fc(h)
  
      self.loss = chainer.functions.softmax_cross_entropy(y, t)
      self.accuracy = chainer.functions.accuracy(y, t)
  
      return self.loss
  
file_path: chainer/tests/chainer_tests/training_tests/updaters_tests/snippets/raw_array.py
imports: import sys
  import numpy
  import chainer
  from chainer import testing
  import chainer.training.updaters.multiprocess_parallel_updater
label_desc: Use image node_id 3 for calling the SimpleNetRawArray obj's underlying member method code with example usage: obj.forward(x, t) and returns: self