Another way to do it is

use Data::Printer {
    class => {
        expand => 'all',           # default 1
    },
};

https://metacpan.org/release/GARU/Data-Printer-0.35/view/lib/Data/Printer.pm#CUSTOMIZATION

As of now we are 12 years in the future, I'm not sure when the expand param was added, but pretty useful!