package Ġnet . d ank ito . bank ing . f ints . rest . model Ċ Ċ import Ġnet . d ank ito . bank ing . f ints . model . Bank Data Ċ import Ġnet . d ank ito . bank ing . f ints . model . Tan Challenge ĊĊ Ċ open Ġclass ĠEnter ing Tan Requested ( ĊĠĠĠ Ġopen Ġval Ġtan RequestId : ĠString , ĊĠĠĠ Ġopen Ġval Ġbank : ĠBank Data , ĊĠĠĠ Ġopen Ġval Ġtan Challenge : ĠT an Challenge Ċ )