code: def testSanity(self):
      growingSignal = [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1]
      decayingSignal = [1, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1]
  
      self.assertTrue(
          StrongDecay()(growingSignal) < StrongDecay()(decayingSignal)
      )
  
file_path: essentia/test/src/unittests/temporal/test_strongdecay.py
imports: from essentia_test import *
  from math import sqrt
  from math import fabs
label_desc: Use image node_id 5 for calling the TestStrongDecay obj's underlying member method code with example usage: obj.testSanity() without return types