code: def test_bad_pipeline_object():
      D = muda.deformers.TimeStretch(rate=2.0)
  
      muda.Pipeline(
          [("stretch1", D), ("stretch2", "not a basetransformer")]
      )
  
imports: from copy import deepcopy
  import re
  import six
  import numpy
  import soundfile
  import jams
  import librosa
  import muda
  import pytest
  import scipy
  from contextlib import contextmanager
label_desc: Use image node_id 43 for calling a global function with example usage: test_bad_pipeline_object() without return types