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.

Homepage:
https://metacpan.org/release/Mixin-ExtraFields-Param
