chore: import upstream snapshot with attribution

python/ray/llm/_internal/serve/__init__.py

@@ -0,0 +1,14 @@
+from ray.llm._internal.common.observability.logging_utils import (
+    disable_vllm_custom_ops_logger_on_cpu_nodes,
+)
+from ray.llm._internal.serve.observability import setup_observability
+
+# Set up observability
+disable_vllm_custom_ops_logger_on_cpu_nodes()
+setup_observability()
+
+
+def _worker_process_setup_hook():
+    """Noop setup hook used for ENABLE_WORKER_PROCESS_SETUP_HOOK
+    (see python/ray/llm/_internal/serve/configs/constants.py)."""
+    pass