code: def testInvalidParam(self):
      self.assertConfigureFails(MonoMixer(), {"type": "unknown"})
  
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 7 for calling the TestMonoMixer_Streaming obj's underlying member method code with example usage: obj.testInvalidParam() without return types