chore: import upstream snapshot with attribution

vllm/entrypoints/pooling/classify/api_router.py

@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+from fastapi import APIRouter, Depends, Request
+from fastapi.responses import Response
+
+from vllm.entrypoints.serve.utils.api_utils import (
+    load_aware_call,
+    validate_json_request,
+    with_cancellation,
+)
+
+from .protocol import ClassificationRequest
+from .serving import ServingClassification
+
+router = APIRouter()
+
+
+def classify(request: Request) -> ServingClassification | None:
+    return request.app.state.serving_classification
+
+
+@router.post("/classify", dependencies=[Depends(validate_json_request)])
+@with_cancellation
+@load_aware_call
+async def create_classify(
+    request: ClassificationRequest, raw_request: Request
+) -> Response:
+    handler = classify(raw_request)
+    if handler is None:
+        raise NotImplementedError("The model does not support Classification API")
+
+    return await handler(request, raw_request)