code: def forward_xp(self, inputs, xp):
      a, b = inputs
      fn = getattr(xp, self.func)
      y1 = fn(a, b)
      y2 = fn(b, a)
      return y1, y2
  
imports: import chainer
  import numpy
  import pytest
  import chainerx
  import chainerx.testing
  from chainerx_tests import array_utils
  from chainerx_tests import dtype_utils
  from chainerx_tests import op_utils
label_desc: Use image node_id 2 for calling the TestLogicalBinary obj's underlying member method code with example usage: obj.forward_xp(inputs, xp) and returns: y1,  y2