docs: public Waiter<DescribeInstancesRequest> instanceTerminated() {
  
          return new WaiterBuilder<DescribeInstancesRequest, DescribeInstancesResult>()
                  .withSdkFunction(new DescribeInstancesFunction(client))
                  .withAcceptors(new InstanceTerminated.IsTerminatedMatcher(), new InstanceTerminated.IsPendingMatcher(),
                          new InstanceTerminated.IsStoppingMatcher())
                  .withDefaultPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(40), new FixedDelayStrategy(15)))
                  .withExecutorService(executorService).build();
      }