abstract class Balance { const Balance(this.available, this.additional, {this.secondAvailable, this.secondAdditional}); final int available; final int additional; final int? secondAvailable; final int? secondAdditional; String get formattedAvailableBalance; String get formattedAdditionalBalance; String get formattedUnAvailableBalance => ''; String get formattedSecondAvailableBalance => ''; String get formattedSecondAdditionalBalance => ''; String get formattedFullAvailableBalance => ''; String get formattedFullUnAvailableBalance => ''; }