chore: import upstream snapshot with attribution

python/ray/tune/execution/cluster_info.py

@@ -0,0 +1,12 @@
+from functools import lru_cache
+from pathlib import Path
+
+
+@lru_cache()
+def _is_ray_cluster():
+    """Checks if the bootstrap config file exists.
+
+    This will always exist if using an autoscaling cluster/started
+    with the ray cluster launcher.
+    """
+    return Path("~/ray_bootstrap_config.yaml").expanduser().exists()