code: def testOne(self):
      self.assertAlmostEqual(LoudnessVickers()([1]), -32.0094032288)
  
file_path: essentia/test/src/unittests/temporal/test_loudnessvickers.py
imports: from essentia_test import *
label_desc: Use image node_id 2 for calling the TestLoudnessVickers obj's underlying member method code with example usage: obj.testOne() without return types