code: def testEmpty(self):
      filename = join(
          testdata.audio_dir, "generated", "empty", "empty.aiff"
      )
      loader = AudioLoader(filename=filename)
      trim = StereoTrimmer(startTime=0, endTime=1, sampleRate=44100)
      pool = Pool()
  
      loader.audio >> trim.signal
      loader.numberChannels >> None
      loader.sampleRate >> None
      loader.md5 >> None
      loader.bit_rate >> None
      loader.codec >> None
      trim.signal >> (pool, "slice")
  
      run(loader)
      self.assertEqualVector(pool.descriptorNames(), [])
  
file_path: essentia/test/src/unittests/standard/test_stereotrimmer_streaming.py
imports: from essentia_test import *
  from essentia.streaming import AudioLoader, VectorInput, StereoTrimmer
label_desc: Use image node_id 7 for calling the TestStereoTrimmer_Streaming obj's underlying member method code with example usage: obj.testEmpty() without return types