# File lib/authlogic/acts_as_authentic/logged_in_status.rb, line 29
        def self.included(klass)
          return if !klass.column_names.include?("last_request_at")
          
          klass.class_eval do
            include InstanceMethods
            
            named_scope :logged_in, lambda { {:conditions => ["last_request_at > ?", logged_in_timeout.seconds.ago]} }
            named_scope :logged_out, lambda { {:conditions => ["last_request_at is NULL or last_request_at <= ?", logged_in_timeout.seconds.ago]} }
          end
        end