That sort of syntax reminds me of Objective C's key paths. [object valueForKeyPath:@"them.public_keys.primary.bundle"]; which is part of the larger, more in

That sort of syntax reminds me of Objective C's key paths. [object valueForKeyPath:@"them.public_keys.primary.bundle"]; which is part of the larger, more in depth, Key-Value coding interface. It was definitely something I missed going back to PHP, Javascript and other languages after using Objective C.