BitbarPlugins\Travel\WifiAccessPoint::getChannelFromDefinition PHP Метод

    private static function getChannelFromDefinition(array $definition)
    {
        if (!(isset($definition[self::DEFINITION_CHANNEL]) && is_int($definition[self::DEFINITION_CHANNEL]))) {
            return null;
        }
        return $definition[self::DEFINITION_CHANNEL];
    }