code: func (w *keystoreWallet) Status() (string, error) {
  	w.keystore.mu.RLock()
  	defer w.keystore.mu.RUnlock()
  
  	if _, ok := w.keystore.unlocked[w.account.Address]; ok {
  		return "Unlocked", nil
  	}
  	return "Locked", nil
  }
docs: // Status implements accounts.Wallet, returning whether the account held by the
  // keystore wallet is unlocked or not.