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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def libvlc_audio_output_list_get(p_instance):
    '''Gets the list of available audio output modules.
    @param p_instance: libvlc instance.
    @return: list of available audio outputs. It must be freed it with In case of error, NULL is returned.
    '''
    f = _Cfunctions.get('libvlc_audio_output_list_get', None) or \
        _Cfunction('libvlc_audio_output_list_get', ((1,),), None,
                    ctypes.POINTER(AudioOutput), Instance)
    return f(p_instance)