~/Downloads/brigadier-master/brigadier -m MacBookPro15,4
Using Mac model: MacBookPro15,4.

Model supported in package distribution file at http://swcdn.apple.com/content/downloads/41/45/061-26565-A_30YFW2NOY7/mcryv1yqxl8bmiok36kl4tiycf3g72uda5/061-26565.English.dist.

Distribution 061-26565 supports the following models: MacBookPro15,4.

Making directory /Users//Documents/BootcampDrivers/MacBookPro15.4/BootCamp-061-26565..

Fetching Boot Camp product at URL http://swcdn.apple.com/content/downloads/41/45/061-26565-A_30YFW2NOY7/mcryv1yqxl8bmiok36kl4tiycf3g72uda5/BootCampESD.pkg.

100.0% 988364800 / 988362095 bytes
Expanding flat package...

Extracting Payload...

Extracted to /Users//Documents/BootcampDrivers/MacBookPro15.4/BootCamp-061-26565/WindowsSupport.dmg.

Done.

LT-rMBP18:MacBookPro15.4 $ nslookup swcdn.apple.com
Server:		4.2.2.1
Address:	4.2.2.1#53

Non-authoritative answer:
swcdn.apple.com	canonical name = swcdn.apple.com.akadns.net.
swcdn.apple.com.akadns.net	canonical name = swcdn.g.aaplimg.com.
Name:	swcdn.g.aaplimg.com
Address: 17.253.7.207
Name:	swcdn.g.aaplimg.com
Address: 17.253.7.204