getWallet function
Implementation
Wallet getWallet(coin) {
if (coin == 'kaspa') return Wallet.KAS;
if (coin == 'karlsen') return Wallet.KLS;
if (coin == 'scp') return Wallet.SC;
return Wallet.values.firstWhere(
(element) => (element.toString().split(".").last) == coin.toUpperCase(),
orElse: () => Wallet.NONE);
}