code: def testOnes(self):
      vibrato, extent = Vibrato()([1] * 1024)
  
      self.assertEqualVector(vibrato, [0.0] * 1024)
      self.assertEqualVector(extent, [0.0] * 1024)
  
file_path: essentia/test/src/unittests/tonal/test_vibrato.py
imports: from essentia_test import *
  from numpy import sin, float32, pi, arange, mean, log2, floor, ceil
label_desc: Use image node_id 3 for calling the TestVibrato obj's underlying member method code with example usage: obj.testOnes() without return types