copyWith method
      
Wallet
copyWith({ 
    
    
- String? walletId,
- WalletBalance? balance,
- WalletNumbers? numbers,
- String? recipientId,
Implementation
Wallet copyWith(
    {String? walletId,
    WalletBalance? balance,
    WalletNumbers? numbers,
    String? recipientId}) {
  return Wallet(
      walletId: walletId ?? this.walletId,
      balance: balance ?? this.balance,
      numbers: numbers ?? this.numbers,
      recipientId: recipientId ?? this.recipientId);
}