def to_bson(self, value):
        raise NotImplementedError
Prompt for password with echo off, using Windows getch().
dataset/ETHPy150Open namlook/mongokit/mongokit/schema_document.py/CustomType.to_bson--crossover with--dataset/ETHPy150Open ctxis/canape/CANAPE.Scripting/Lib/getpass.py/win_getpass