Me neither, that string isn't very nice.

An interesting approach you suggest, this is what I was after! :)

Tho that does make the code look a bit messier - maybe some more encapsulation around it...

My::Customer->get( registered => [ $datetime, My::Operator->greater ] 
+);

package My::Operator;

sub greater
{
    return '>';  # or something more fully fledged!
}
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