Update handler.py

handler.py

@@ -1,3 +1,24 @@
+import subprocess
+import sys
+import os
+
+# Install transformers dev build that supports paddleocr_vl
+subprocess.check_call([
+    sys.executable, "-m", "pip", "install", "--quiet", "--upgrade",
+    "git+https://github.com/huggingface/transformers.git",
+])
+
+# Monkey-patch old API that huggingface_inference_toolkit depends on
+import transformers
+if not hasattr(transformers, "file_utils"):
+    import types
+    file_utils_shim = types.ModuleType("transformers.file_utils")
+    # Provide stubs for commonly used symbols
+    file_utils_shim.is_tf_available = transformers.utils.is_tf_available
+    file_utils_shim.is_torch_available = transformers.utils.is_torch_available
+    sys.modules["transformers.file_utils"] = file_utils_shim
+    transformers.file_utils = file_utils_shim
+
 from transformers import AutoProcessor, AutoModelForImageTextToText
 import torch
 from PIL import Image