code: def forward_expected(self, inputs):
      a, b = inputs
      y_expect = numpy.tensordot(a, b, self.axes)
      return (y_expect,)
  
file_path: chainer/tests/chainer_tests/functions_tests/math_tests/test_tensordot.py
imports: import unittest
  import numpy
  import chainer
  import chainer.functions
  from chainer import testing
label_desc: Use image node_id 3 for calling the TestTensorDot obj's underlying member method code with example usage: obj.forward_expected(inputs) and returns: y_expect