code: def testSingle(self):
      self.assertComputeFails(SingleBeatLoudness(), [1])
  
file_path: essentia/test/src/unittests/rhythm/test_singlebeatloudness.py
imports: from numpy import *
  from essentia_test import *
label_desc: Use image node_id 3 for calling the TestSingleBeatLoudness obj's underlying member method code with example usage: obj.testSingle() without return types