# File lib/aws/simple_workflow/decision_task.rb, line 589
      def _each_event events, &block
        prev_event_id = self.previous_started_event_id
        events.each do |description|
          event = HistoryEvent.new(workflow_execution, description)
          Core::MetaUtils.extend_method(event, :new?) do
            prev_event_id.nil? or self.event_id > prev_event_id
          end
          yield(event)
        end
      end