Interpretation of None changed from "null" to "none"

server.py

@@ -845,7 +845,7 @@ class LeaderboardServer:
                     
                     for attr in ["n-shot", "fewshot_as_multiturn", "max_length", "chat_template"]:
                         attr_val = data["metadata"].get(attr, metadata_default_value)
-                        attr_val = attr_val if attr_val != None else "null"
+                        attr_val = attr_val if attr_val != None else "none"
                         local_results[attr] = attr_val
                     
                     release = data["submission_metadata"].get("submission_timestamp")