package Ġpl . todo it . ind ustrial Android WebApp Host . model Ċ Ċ sealed Ġclass ĠChoice 2 < First T , Second T > Ġ{ ĊĠĠĠ Ġclass ĠChoice 1 Of 2 < First T , Second T >( val Ġvalue : First T ) Ġ: ĠChoice 2 < First T , ĠSecond T >() ĊĠĠĠ Ġclass ĠChoice 2 Of 2 < First T , Second T >( val Ġvalue : Second T ) Ġ: ĠChoice 2 < First T , ĠSecond T >() Ċ }