Note initial addition of p5-Mixin-ExtraFields-Param version 0.011
as devel/p5-Mixin-ExtraFields-Param into The NetBSD Packages
Collection.

The Perl 5 module Mixin::ExtraFields::Param mixes in to your class
to provide a param method like the ones provided by CGI, CGI::Application,
and other classes. It uses Mixin::ExtraFields, which means it can
use any Mixin::ExtraFields driver to store your data.

(seb)