old_contents: import scrollphat
  from pijobs.scrollphatjob import ScrollphatJob
  
  class FlashJob(ScrollphatJob):
      def run(self):
          scrollphat.clear()
          for i in range(int(self.options['loop'])):
              scrollphat.set_pixels(lambda x, y: True, True)
              self.sleep_interval()
              scrollphat.clear()
              self.sleep_interval()
          self.sleep()
  
  
new_contents: import scrollphat
  from pijobs.scrollphatjob import ScrollphatJob
  
  class FlashJob(ScrollphatJob):
      def run(self):
          scrollphat.clear()
          for i in range(int(self.options['loop'])):
              scrollphat.set_pixels(lambda x, y: True, True)
              self.sleep_interval()
              scrollphat.clear()
              self.sleep_interval()
          self.sleep()
  
      def default_options(self):
          return {
                  'loop': 5,
                  'brightness': 10,
                  'interval': 0.2,
                  }
  
subject: Add default options for FlashJob.