예제 #1
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 public CardExpired(Month validBefore) : base(validBefore)
 {
 }
예제 #2
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 public int CompareTo(Month other) =>
 - other.CompareTo(this.UtcTime);
예제 #3
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 public BankCard(Month validBefore)
 {
     this.ValidBefore = validBefore ?? throw new ArgumentNullException(nameof(validBefore));
 }