WalletServiceImpl constructor
      
      WalletServiceImpl({ 
    
    
- required BalanceUsecase balanceUsecase,
- required CreateWalletUsecase createWalletUsecase,
- required TransactionsUsecase transactionsUsecase,
Implementation
WalletServiceImpl({
  required this.balanceUsecase,
  required this.createWalletUsecase,
  required this.transactionsUsecase,
});