use warnings;
use base 'Exporter';
-our $VERSION = '0.08';
+our $VERSION = '0.11';
use 5.006;
use Carp 'confess';
has a builder, then providing a value for the attribute in the constructor is
optional.
-=item init_arg => Str
+=item init_arg => Str | Undef
-Allows you to use a different key name in the constructor.
+Allows you to use a different key name in the constructor. If undef, the
+attribue can't be passed to the constructor.
=item default => Value | CodeRef