anyStateExists method

Future<bool> anyStateExists()

Checks if any rate limiter state exists in persistent storage.

Returns true if either the token count or last refill timestamp exists in SharedPreferences. Useful for determining if this is the first time the rate limiter is being used.

Implementation

Future<bool> anyStateExists() async {
  return await _tokenCount.existsOnPrefs() ||
      await _lastRefill.existsOnPrefs();
}