code: def register(coordinator):
      
      utils.verify_binary('pdiff_compare_binary', ['-version'])
      utils.verify_binary('pdiff_composite_binary', ['-version'])
  
      assert FLAGS.pdiff_threads > 0
      assert FLAGS.queue_server_prefix
  
      item = queue_worker.RemoteQueueWorkflow(
          constants.PDIFF_QUEUE_NAME,
          DoPdiffQueueWorkflow,
          max_tasks=FLAGS.pdiff_threads,
          wait_seconds=FLAGS.pdiff_wait_seconds)
      item.root = True
      coordinator.input_queue.put(item)
docs: Registers this module as a worker with the given coordinator.