func createPredicate<T: CVarArg>(value: T) -> [NSPredicate] {
    return [NSPredicate(format: "someProperty == %@", value)]
}

func createPredicate(value: Int) -> [NSPredicate] {
    return [NSPredicate(format: "someProperty == %@", value as NSNumber)]
}

func createPredicate<T: CVarArg>(value: T) -> [NSPredicate] {
    guard let number = value as? NSNumber else { return [NSPredicate(format: "someProperty == %@", value)] }

    return [NSPredicate(format: "someProperty == %@", number)]
}

func createPredicate<T: RawRepresentable>(value: T) -> [NSPredicate] where T.RawValue: CVarArg {
    return createPredicate(value: value.rawValue)
}