Class Attributes with Moo ?

mascip has asked for the wisdom of the Perl Monks concerning the following question:

Hello,
with Moose i used MooseX::ClassAttribute to declare class attributes. I am thinking about transitioning to Moo, and am wondering how to best deal with class attributes.

For example, i am sharing a timer between all the objects of a class. I used to write

package MyClass;
use Moose;
use MooseX::ClassAttribute;

class_has 'timer' => (
    is       => 'ro',
    isa      => 'Benchmark::Timer',
    default  => sub { Benchmark::Timer->new() },
);
[download]

Now with Moo i have just used the "good old way" (maybe not that "good"?) :

package MyClass;
use Moo;

my $timer = Benchmark::Timer->new();
[download]

Is there any nicer way to do that?

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