MooX-late
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examples/simple.pl view on Meta::CPAN
package Foo;
use Moo;
use MooX::late;
has bar => (is => 'ro', isa => 'Str|ArrayRef[Int|Num]|Int');
Foo->new(bar => [1, '2o', 3])
( run in 0.710 second using v1.01-cache-2.11-cpan-5f2e87ce722 )