doesWalletExist

Future<bool> doesWalletExist([String? chainId])

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

// Check if any wallet exists
final exists = await portal.doesWalletExist();

if (exists) {
  print('Wallet exists');
} else {
  print('No wallet found');
}

// Check if EVM wallet exists
final evmExists = await portal.doesWalletExist('eip155:1');

// Check if Solana wallet exists
final solExists = await portal.doesWalletExist('solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp');