the format of the csv file

[duchengyao]

I wanted to convert the format of ip2location to mmdb, so I found this project. I don't understand perl syntax.

I found the input format is 185.199.108.0/23,3659,US,Github in the readme.
But in convert.pl there are some variables like latitude longitude.

mmdb-converter/convert.pl

Lines 58 to 69 in f1c6d1d

	\$iprange,
	\$country,
	# \$continent,
	# \$countryID,
	\$latitude,
	\$longitude,
	# \$inEU,
	\$asn,
	\$aso,
	\$isAnycast,
	\$isSatelliteProvider,
	\$isAnonymousProxy );

So what is the correct input format, do I need to put headers like ip-range,ASN,Country,ISP-Name on the first line?