code: def get_fftlib() -> ModuleType:
      """Get the FFT library currently used by librosa
  
      Returns
      -------
      fft : module
          The FFT library currently used by librosa.
          Must API-compatible with `numpy.fft`.
      """
      if __FFTLIB is None:
          # This path should never occur because importing
          # this module will call set_fftlib
          assert False  # pragma: no cover
  
      return __FFTLIB
  
imports: from types import ModuleType
  from typing import Optional
label_desc: Use image node_id 2 for calling a global function with example usage: get_fftlib() and returns: __FFTLIB