/// <summary>
 /// Optional. Indicates that the pass is void—for example, a one time use coupon that has been redeemed.
 /// </summary>
 /// <remarks>
 /// The default value is false.
 /// Available in iOS 7.0.
 /// </remarks>
 public static PassBuilder.ExpirationBuilder Voided(this PassBuilder.ExpirationBuilder builder, bool value)
 {
     builder.SetValue(PassBuilder.GetCaller(), value);
     return(builder);
 }
 /// <summary>
 /// Optional. Date and time when the pass expires.
 /// </summary>
 /// <remarks>
 /// The value must be a complete date with hours and minutes, and may optionally include seconds.
 /// Available in iOS 7.0.
 /// </remarks>
 public static PassBuilder.ExpirationBuilder ExpirationDate(this PassBuilder.ExpirationBuilder builder, DateTimeOffset value)
 {
     builder.SetValue(PassBuilder.GetCaller(), value);
     return(builder);
 }