code: def forward(self, inputs, device):
      x, gamma, beta, mean, var = inputs
      with testing.assert_warns(DeprecationWarning):
          y = batch_renormalization.fixed_batch_renormalization(
              x, gamma, beta, mean, var, eps=self.eps
          )
      return (y,)
  
imports: import numpy
  import six
  import chainer
  from chainer.functions.normalization import batch_renormalization
  from chainer import testing
  import chainerx
label_desc: Use image node_id 3 for calling the TestFixedBatchRenormalization obj's underlying member method code with example usage: obj.forward(inputs, device) and returns: y