clearCache method
Implementation
Future<void> clearCache() async {
// Copy the keys before clearing: once the map is empty there is nothing
// left to delete from storage.
final keys = _cache.keys.toList();
_cache.clear();
// There is no built-in method to deleteAll from SharedPreferences, so:
for (final key in keys) {
await SecureStorage.clearSecureData(key);
}
}