code: def test_stamp_dual_mpi(self):
      a = np.array(
          [0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0]
      )
      b = np.array(
          [0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0]
      )
      mpi_outcome = np.array(
          [0.0, 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 3.0, 0.0]
      )
  
      r = stamp(a, 4, b, sampling=1.0)
  
      assert len(r[1]) == 9
  
imports: from matrixprofile.matrixProfile import *
  import numpy
  import pytest
label_desc: Use image node_id 13 for calling the TestClass obj's underlying member method code with example usage: obj.test_stamp_dual_mpi() without return types