code: def griffin_lim(
      *, spec: np.ndarray = None, num_iter=60, **kwargs
  ) -> np.ndarray:
      angles = np.exp(2j * np.pi * np.random.rand(*spec.shape))
      S_complex = np.abs(spec).astype(complex)
      y = istft(y=S_complex * angles, **kwargs)
      if not np.isfinite(y).all():
          print(
              " [!] Waveform is not finite everywhere. Skipping the GL."
          )
          return np.array([0.0])
      for _ in range(num_iter):
          angles = np.exp(1j * np.angle(stft(y=y, **kwargs)))
          y = istft(y=S_complex * angles, **kwargs)
      return y
  
imports: from io import BytesIO
  from typing import Tuple
  import librosa
  import numpy
  import scipy
  import soundfile
  from librosa import magphase, pyin
label_desc: Use image node_id 17 for calling a global function with example usage: griffin_lim() and returns: y, np