setDefaultWalletForSending method
Set default wallet for sending funds (e.g. for paying invoices)
Implementation
void setDefaultWalletForSending(String walletId) {
if (_wallets.any((wallet) => wallet.id == walletId)) {
_repository.setDefaultWalletForSending(walletId);
} else {
throw ArgumentError('Wallet with id $walletId does not exist.');
}
}