code: def test30Sec(self):
      input = [randint(41, 100) for x in range(44100 * 30)]
      self.assertAlmostEqual(EffectiveDuration()(input), 30)
  
file_path: essentia/test/src/unittests/temporal/test_effectiveduration.py
imports: from essentia_test import *
  from random import randint
label_desc: Use image node_id 6 for calling the TestEffectiveDuration obj's underlying member method code with example usage: obj.test30Sec() without return types