There are lot of OO modules that use has to introduce attributes (ie per-instance storage), for example Moose and the smaller cousins Moo and Mo, and also Mojo::Base.

And of course that's also the syntax for attributes in Perl 6, where you'd write it as 

has $.schema = Schema.connect('dbi:SQLite:test.db');

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Perl 6 - the future is here, just unevenly distributed

In reply to Re: "has" statement by moritz
in thread "has" statement by tritt

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