code: def forward_xp(self, inputs, xp):
      y, t = inputs
      out = xp.accuracy(y, t, self.ignore_label)
      return (out,)
  
file_path: chainer/tests/chainerx_tests/unit_tests/routines_tests/test_evaluation.py
imports: import chainer
  from chainer import functions
  import numpy
  import pytest
  import chainerx
  from chainerx_tests import array_utils
  from chainerx_tests import op_utils
label_desc: Use image node_id 3 for calling the TestAccuracy obj's underlying member method code with example usage: obj.forward_xp(inputs, xp) and returns: out