libmason-perl binary package in Ubuntu Bionic amd64

 Mason is a powerful Perl-based templating system, designed to generate
 dynamic content of all kinds.
 .
 Unlike many templating systems, Mason does not attempt to invent an
 alternate, "easier" syntax for templates. It provides a set of syntax and
 features specific to template creation, but underneath it is still clearly
 and proudly recognizable as Perl.
 .
 Mason is most often used for generating web pages. It can handle web requests
 directly via PSGI, or act as the view layer for a web framework such as
 Catalyst or Dancer.
 .
 All documentation is indexed at Mason::Manual.
 .
 The previous major version of Mason (1.x) is available under the name
 HTML::Mason (package libhtml-mason-perl).

Source package