chore: import upstream snapshot with attribution

python/ray/util/spark/start_hook_base.py

@@ -0,0 +1,18 @@
+class RayOnSparkStartHook:
+    def __init__(self, is_global):
+        self.is_global = is_global
+
+    def get_default_temp_root_dir(self):
+        return "/tmp"
+
+    def on_ray_dashboard_created(self, port):
+        pass
+
+    def on_cluster_created(self, ray_cluster_handler):
+        pass
+
+    def on_spark_job_created(self, job_group_id):
+        pass
+
+    def custom_environment_variables(self):
+        return {}