こんなんだっけなぁ.kt

interface Func{}

class Function<T>(val f: () -> T) : Func{
    fun invoke() = f()
}
class Function1<T>(val f: (value : String) -> T) : Func{
    fun invoke(value : String) = f(value)
}


val BY_SELECTING_ATTRIBUTES = mapOf<String, Func>(Pair("id", Function1<By>({id ->
         By.id(id)
    })), Pair("clazz", Function<java.lang.Class<By>>({
        By::class.java
    })),Pair("name", Function1<By>{ name ->
        By.name(name)
    }))