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vllm/transformers_utils/__init__.py

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+# SPDX-License-Identifier: Apache-2.0
+
+from vllm.envs import VLLM_USE_MODELSCOPE
+
+if VLLM_USE_MODELSCOPE:
+    # Patch here, before each import happens
+    import modelscope
+    from packaging import version
+
+    # patch_hub begins from modelscope>=1.18.1
+    if version.parse(modelscope.__version__) <= version.parse('1.18.0'):
+        raise ImportError(
+            'Using vLLM with ModelScope needs modelscope>=1.18.1, please '
+            'install by `pip install modelscope -U`')
+
+    from modelscope.utils.hf_util import patch_hub
+
+    # Patch hub to download models from modelscope to speed up.
+    patch_hub()