code: def test_stamp_sampling_over_one(self):
      with pytest.raises(ValueError) as excinfo:
          stamp(None, None, sampling=2)
      assert "Sampling value must be a percentage" in str(excinfo.value)
  
imports: from matrixprofile.matrixProfile import *
  import numpy
  import pytest
label_desc: Use image node_id 17 for calling the TestClass obj's underlying member method code with example usage: obj.test_stamp_sampling_over_one() without return types