code: def testEmpty(self):
      gen = VectorInput([])
      pool = Pool()
      trim = Trimmer(startTime=0, endTime=1, sampleRate=44100)
  
      gen.data >> trim.signal
      trim.signal >> (pool, "slice")
      run(gen)
      self.assertEqualVector(pool.descriptorNames(), [])
  
file_path: essentia/test/src/unittests/standard/test_trimmer_streaming.py
imports: from essentia_test import *
  from essentia.streaming import Trimmer
label_desc: Use image node_id 7 for calling the TestTrimmer_Streaming obj's underlying member method code with example usage: obj.testEmpty() without return types