How to use the psychtoolbox.audio.get_version_info function in psychtoolbox

else:
    audioDriver = prefs.hardware['audioDriver']

if prefs.hardware['audioDevice']=='auto':
    audioDevice = None
else:
    audioDevice = prefs.hardware['audioDevice']

# these will be used by sound.__init__.py
defaultInput = None
defaultOutput = audioDevice


travisCI = bool(str(os.environ.get('TRAVIS')).lower() == 'true')
logging.info("Loaded psychtoolbox audio version {}"
             .format(audio.get_version_info()['version']))

# ask PTB to align verbosity with our current logging level at console
_verbosities = ((logging.DEBUG, 5),
                (logging.INFO, 4),
                (logging.EXP, 3),
                (logging.WARNING, 2),
                (logging.ERROR, 1))
for _logLevel, _verbos in _verbosities:
    if logging.console.level <= _logLevel:
        audio.verbosity(_verbos)
        break

def init(rate=48000, stereo=True, buffer=128):
    pass  # for compatibility with other backends