Need help to update the Apple wallet coupon pass

Hi, I am using .Net core 7 (C#) to create and update the apple wallet passes for creating the pass I am using the NuGet package dotnet-passbook v3.2.4. I had created the apple general and coupon pass successfully by using this package but I am not able to update the pass , need some help how to update the pass , please share any sample .

Need help to update the Apple wallet coupon pass
 
 
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