code: def testRegression(self):
      inputArray = readVector(
          os.path.abspath(
              os.path.join(
                  os.path.dirname(__file__),
                  "..",
                  "stats/stats/input.txt",
              )
          )
      )
      distShape = readVector(
          os.path.abspath(
              os.path.join(
                  os.path.dirname(__file__),
                  "..",
                  "stats/stats/distributionshape.txt",
              )
          )
      )
      centroid = SpectralCentroidTime()(inputArray)
  
      self.assertAlmostEqual(centroid, distShape[8], 10)
  
imports: from essentia_test import *
  import os
label_desc: Use image node_id 3 for calling the TestSpectralCentroidTime obj's underlying member method code with example usage: obj.testRegression() without return types