code: def testRight(self):
      gen = VectorInput(self.clickTrack())
      chGen = VectorInput([2])
      mixer = MonoMixer(type="right")
      pool = Pool()
  
      gen.data >> mixer.audio
      mixer.audio >> (pool, "mix")
      chGen.data >> mixer.numberChannels
      chGen.push("data", 2)
      run(gen)
      self.assertEqualVector(pool["mix"], self.right)
  
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 3 for calling the TestMonoMixer_Streaming obj's underlying member method code with example usage: obj.testRight() without return types