code: def test_binary_op_like_einsum(self, func_name, a, b, einsum_expr):
      gs_fnc = get_backend_fnc(func_name)
  
      gs_out = gs_fnc(a, b)
      ein_out = gs.einsum(einsum_expr, a, b)
  
      self.assertAllClose(gs_out, ein_out)
  
imports: import random
  import numpy
  import pytest
  import scipy
  import geomstats.backend
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
label_desc: Use image node_id 1 for calling the AgainstEinsumTestCase obj's underlying member method code with example usage: obj.test_binary_op_like_einsum(func_name, a, b, einsum_expr) without return types