Prevents errors like:
subtype Foo => ...
Which should be written as:
subtype Foo, ...
When using MooseX::Types. Exported by that module.
Exports checked versions of the following subs:
role_type will also register the type in the library.
From Moose::Util::TypeConstraints. See that module for syntax.
This program is free software; you can redistribute it and/or modify it under the same terms as perl itself.