# Type Safety

Arguments also support type safety. This is done through the use of the `ArgumentKey<T>` record. When in a `Context` and doing `.get("foo")` , you can instead do `.get(key)`.

```java
final ArgumentKey<Integer> fooKey = new ArgumentKey<>("foo", Integer.class);
addFormat("brigader example foo:int bar:float baz:person", ctx -> {
final int foo = ctx.get(fooKey);
});
```

This mitigates the type-safety issues with retrieving and using arguments.

> Anywhere that an argument name can be used, a key can also be used. This includes getting arguments and suggestions.


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