code: def test_invalid_shape(self):
      for xp in (numpy, cupy):
          shape1, shape2 = self.shape_pair
          x1 = testing.shaped_arange(shape1, xp, numpy.float32)
          x2 = testing.shaped_arange(shape2, xp, numpy.float32)
          with pytest.raises(ValueError):
              xp.matmul(x1, x2)
  
imports: import operator
  import unittest
  import numpy
  import pytest
  import cupy
  from cupy._core import _routines_linalg
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestMatmulInvalidShape obj's underlying member method code with example usage: obj.test_invalid_shape() without return types