Mike42\Escpos\CapabilityProfile::loadCapabilitiesDataFile PHP Method

    protected static function loadCapabilitiesDataFile()
    {
        if (self::$profiles === null) {
            $filename = dirname(__FILE__) . "/resources/capabilities.json";
            $capabilitiesData = json_decode(file_get_contents($filename), true);
            self::$profiles = $capabilitiesData['profiles'];
            self::$encodings = $capabilitiesData['encodings'];
        }
    }