code: def testEmpty(self):
      self.assertRaises(
          RuntimeError, lambda: PitchSalienceFunctionPeaks()([])
      )
  
imports: from essentia_test import *
  from numpy import *
label_desc: Use image node_id 2 for calling the TestPitchSalienceFunctionPeaks obj's underlying member method code with example usage: obj.testEmpty() without return types