code: def test_massStomp(self):
      query = np.array([2.0, 1.0])
      ts = np.array([1.0, 2.0, 1.0])
      m = 2
      dot_first = np.array([5.0, 4.0])
      dot_prev = np.array([5.0, 4.0])
      index = 1
      mean = np.array([1.5, 1.5])
      std = np.array([0.5, 0.5])
  
      outcome = np.array([2.82842712, 0.0])
  
      mass, dot = massStomp(
          query, ts, dot_first, dot_prev, index, mean, std
      )
  
      assert np.allclose(np.sqrt(mass), outcome)
  
imports: from matrixprofile.utils import *
  import numpy
  import pytest
label_desc: Use image node_id 14 for calling the TestClass obj's underlying member method code with example usage: obj.test_massStomp() without return types