code: def make_x1_x2(self, xp, shapes, dtypes):
      x1 = testing.shaped_random(shapes[0], xp, dtypes[0])
      x2 = testing.shaped_random(shapes[1], xp, dtypes[1])
      return 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 3 for calling the _TestMatmulComputeTypes obj's underlying member method code with example usage: obj.make_x1_x2(xp, shapes, dtypes) and returns: x1,  x2