use MooseX::AttributeHelpers::Counter;
use MooseX::AttributeHelpers::Number;
use MooseX::AttributeHelpers::String;
+use MooseX::AttributeHelpers::Bool;
use MooseX::AttributeHelpers::Collection::List;
use MooseX::AttributeHelpers::Collection::Array;
use MooseX::AttributeHelpers::Collection::Hash;