deleteKeychain

Future<void> deleteKeychain()

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

// First, ensure wallet is backed up
final isBackedUp = await portal.isWalletBackedUp();

if (isBackedUp) {
  // Safe to delete local data
  await portal.deleteKeychain();
  print('Local wallet data deleted');
} else {
  print('Please backup wallet before deleting');
}

Future<void> logout() async {
  final portal = Portal();

  // Ensure backup exists
  if (await portal.isWalletBackedUp()) {
    await portal.deleteKeychain();
  }

  // Clear other app data...
}

Future<void> resetWallet() async {
  final portal = Portal();

  // Delete local data
  await portal.deleteKeychain();

  // Create new wallet
  final addresses = await portal.createWallet();
  print('New wallet created: ${addresses.ethereum}');
}