libvariable-magic-perl 0.59-1build1 (i386 binary) in ubuntu xenial

 Variable::Magic is Perl way of enhancing objects. This mechanism lets the user
 add extra data to any variable and hook syntaxical operations (such as access,
 assignment or destruction) that can be applied to it.
 .
 With this module, you can add your own magic to any variable without having
 to write a single line of XS.