code: def forward(self, inputs, device):
      if self.nobias:
          x, W = inputs
          b = None
      else:
          x, W, b = inputs
      y = functions.linear(x, W, b, n_batch_axes=self.n_batch_axes)
      return (y,)
  
imports: import unittest
  import numpy
  import pytest
  import chainer
  from chainer import functions
  from chainer import testing
  from chainer.testing import backend
label_desc: Use image node_id 5 for calling the TestNonparameterizedLinear obj's underlying member method code with example usage: obj.forward(inputs, device) and returns: y