def epoch_time_to_iso(epoch_time):
    return None if epoch_time is None else utils.datetime_to_iso(utils.from_unix_epoch_time_secs(epoch_time))
Convert seconds since unix epoch to a string in ISO format
dataset/ETHPy150Open Sage-Bionetworks/synapsePythonClient/synapseclient/cache.py/epoch_time_to_iso