structured Type Constraints for Moose
A structured type constraint is a standard container Moose type
constraint, such as an ArrayRef or HashRef, which has been enhanced to
allow you to explicitly name all the allowed type constraints inside the
structure.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: https://metacpan.org/release/MooseX-Types-Structured
