code: def testZero(self):
      # generate test signal
      signalSize = 10 * self.params["frameSize"]
      signal = zeros(signalSize)
  
      outsignal = analysisSynthesisStreaming(self.params, signal)
      # cut to duration of input signal
      outsignal = outsignal[:signalSize]
  
      # compare without half-window bounds to avoid windowing effect
      halfwin = self.params["frameSize"] // 2
      self.assertAlmostEqualVectorFixedPrecision(
          outsignal[halfwin:-halfwin],
          signal[halfwin:-halfwin],
          self.precisionDigits,
      )
  
file_path: essentia/test/src/unittests/synthesis/test_overlapadd_streaming.py
imports: from essentia_test import *
  import math
  import essentia
  import essentia.streaming
  import essentia.standard
label_desc: Use image node_id 1 for calling the TestOverlapAdd obj's underlying member method code with example usage: obj.testZero() without return types