## Formatted Combinator


```swift
struct Formatter<Result, A> {
    let format: ((String) -> Result) -> A
}


func string<A>() -> Formatter<A, (String) -> A> {
    return Formatter { stringToResult in {
            string in stringToResult(string)
        }
    }
}

func format<A>(formatter: Formatter<String, A>) -> A  {
    return formatter.format {
        string in string
    }
}

format(string())("Hello, World!")

```