fix: avoid returning none as a serializer

return an error instead

Signed-off-by: Raphael Glon <[email protected]>

Author: oOraph

src/huggingface_inference_toolkit/serialization/base.py

@@ -44,6 +44,12 @@ def get_deserializer(content_type: str, task: str):
                 return Audioer
             elif "image" in task:
                 return Imager
+            message = f"""
+                Content type "{content_type}" not supported for task {task}.
+                Supported content types are:
+                {", ".join(list(content_type_mapping.keys()))}
+            """
+            raise Exception(message)
 
         # Extract media type from content type
         extracted = content_type.split(";")[0]