code: def spectrogram(x, n_fft, n_shift, win_length=None, window="hann"):
      # x: (Time, Channel) -> spc: (Time, Channel, Freq)
      spc = np.abs(stft(x, n_fft, n_shift, win_length, window=window))
      return spc
  
imports: import librosa
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: spectrogram(x, n_fft, n_shift, win_length, window) and returns: spc