use Mouse::Util::TypeConstraints ();
-use Carp ();
-use Scalar::Util qw/blessed weaken/;
+use Carp ();
+use Scalar::Util ();
my %METAS;
my $meta = $self->initialize( $package_name, %options);
- weaken $METAS{$package_name}
+ Scalar::Util::weaken $METAS{$package_name}
if $mortal;
$meta->add_method(meta => sub{