code: def clickTrack(self):
      size = 100
      offset = 10
      self.left = [0] * size
      self.right = [0] * size
      for i in range(int(offset / 2), size, offset):
          self.left[i] = 1.0
      for i in range(offset, size, offset):
          self.right[i] = 1
  
      output = []
      for i in range(size):
          output.append((self.left[i], self.right[i]))
  
      return array(output)
  
file_path: essentia/test/src/unittests/standard/test_monomixer_streaming.py
imports: from essentia_test import *
  from essentia.streaming import MonoMixer, AudioLoader
label_desc: Use image node_id 1 for calling the TestMonoMixer_Streaming obj's underlying member method code with example usage: obj.clickTrack() and returns: array