We actually do. This is the Null Object Pattern. The `Rubycas::Helper::Config` object now responds to any method whether the key is in `config` hash or not. If the key isn't in the hash, it will return nil. It allows us to remove logic relating to sending a default value when the key isn't present. In this case, [we can call `#ssla`](https://github.com/sqm/cookbook-rubycas/pull/31/files#diff-3e8bbb9796e1fb74295ceac72868245bR93) on the `Rubycas::Helper::Config` object whether the key is in the data bag or not.