code: def test_inner_product(self):
      # Inner products
      self.optimize_compare("ab,ab")
      self.optimize_compare("ab,ba")
      self.optimize_compare("abc,abc")
      self.optimize_compare("abc,bac")
      self.optimize_compare("abc,cba")
  
imports: import itertools
  import sys
  import platform
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_array_equal, assert_almost_equal, assert_raises, suppress_warnings, assert_raises_regex, assert_allclose
label_desc: Use image node_id 40 for calling the TestEinsum obj's underlying member method code with example usage: obj.test_inner_product() without return types