# File lib/puppet/util/queue.rb, line 53
53:     def self.register_queue_type(klass, type = nil)
54:         type ||= queue_type_from_class(klass)
55:         raise Puppet::Error, "Queue type %s is already registered" % type.to_s if instance_hash(:queue_clients).include?(type)
56:         instance_hash(:queue_clients)[type] = klass
57:     end