code: def testEmptyDegara(self):
      input = []
      self.assertRaises(
          RuntimeError,
          lambda: RhythmExtractor2013(method="degara")(input),
      )
  
imports: from essentia_test import *
  from essentia.standard import MonoLoader, RhythmExtractor2013
  from math import fabs
  from math import floor
label_desc: Use image node_id 8 for calling the TestRhythmExtractor2013 obj's underlying member method code with example usage: obj.testEmptyDegara() without return types