code: def is_multichannel(self, samples):
      return is_waveform_multichannel(samples)
  
imports: import random
  import warnings
  import numpy
  from numpy.typing import NDArray
  from audiomentations.core.utils import is_waveform_multichannel, is_spectrogram_multichannel
label_desc: Use image node_id 2 for calling the BaseWaveformTransform obj's underlying member method code with example usage: obj.is_multichannel(samples) and returns: is_waveform_multichannel