docs: public Waiter<DescribeMLModelsRequest> mLModelAvailable() {
  
          return new WaiterBuilder<DescribeMLModelsRequest, DescribeMLModelsResult>().withSdkFunction(new DescribeMLModelsFunction(client))
                  .withAcceptors(new MLModelAvailable.IsCOMPLETEDMatcher(), new MLModelAvailable.IsFAILEDMatcher())
                  .withDefaultPollingStrategy(new PollingStrategy(new MaxAttemptsRetryStrategy(60), new FixedDelayStrategy(30)))
                  .withExecutorService(executorService).build();
      }