extension String.StringInterpolation {
    mutating func appendInterpolation(_ value: Int) {
        let formatter = NumberFormatter()
        formatter.numberStyle = .spellOut
        guard let spelledValue = formatter.string(from: value as NSNumber) else {
            return
        }
        appendLiteral(spelledValue)
    }
}

extension String.StringInterpolation {
    mutating func appendInterpolation(_ date: Date) {
        let formatter = DateFormatter()
        formatter.dateStyle = .medium
        formatter.timeStyle = .full
        let formattedDate = formatter.string(from: date)
        appendLiteral(formattedDate)
    }