code: def testEmpty(self):
      gen = VectorInput([])
      strongDecay = sStrongDecay()
      p = Pool()
  
      gen.data >> strongDecay.signal
      strongDecay.strongDecay >> (p, "strongDecay")
  
      run(gen)
  
      self.assertEqual(len(p.descriptorNames()), 0)
  
imports: from essentia_test import *
  from essentia.streaming import StrongDecay
label_desc: Use image node_id 1 for calling the TestStrongDecay_Streaming obj's underlying member method code with example usage: obj.testEmpty() without return types