Longman\TelegramBot\Botan::initializeBotan PHP Method

    public static function initializeBotan($token)
    {
        if (empty($token) || !is_string($token)) {
            throw new TelegramException('Botan token should be a string!');
        }
        self::$token = $token;
        BotanDB::initializeBotanDb();
    }

 /**
  * Enable Botan.io integration
  *
  * @param  $token
  * @return Telegram
  */
 public function enableBotan($token)
 {
     Botan::initializeBotan($token);
     $this->botan_enabled = true;
     return $this;
 }