@staticmethod
    def with_prefix(cache_model, prefix):
        return lambda key, f, time_expire=DEFAULT_TIME_EXPIRE, prefix=prefix:\
            cache_model(prefix + key, f, time_expire)
allow replacing cache.ram with cache.with_prefix(cache.ram,'prefix')
dataset/ETHPy150Open uwdata/termite-visualizations/web2py/gluon/cache.py/Cache.with_prefix