message: Test tensorflow/contrib/timeseries/python/timeseries:estimators_test only in opt mode to avoid flaky timeouts
diff: @@ -110,6 +110,7 @@ py_test(
  "no_pip_gpu", # b/63391119
  "nomsan", # Takes too long to run.
  "notsan", # b/67865658
  + "optonly", # Takes too long to run without optimization.
  ],
  deps = [
  ":ar_model",
  