code: def testRegression(self):
      # values from Matlab/Octave
      inputArray = [
          0.89442718,
          -0.60150099,
          -0.12078822,
          -0.37174806,
          0.82789522,
      ]
      expected = [0, 0, 1, 0, 1]
      self.assertAlmostEqualVector(
          IDCT(outputSize=len(expected), inputSize=len(inputArray))(
              inputArray
          ),
          expected,
          1e-6,
      )
  
imports: from essentia_test import *
label_desc: Use image node_id 2 for calling the TestIDCT obj's underlying member method code with example usage: obj.testRegression() without return types