Labels are now added to model config under id2label and label2id (#2945)

examples/ner/run_ner.py

@@ -586,6 +586,8 @@ def main():
     config = config_class.from_pretrained(
         args.config_name if args.config_name else args.model_name_or_path,
         num_labels=num_labels,
+        id2label={str(i): label for i, label in enumerate(labels)},
+        label2id={label: i for i, label in enumerate(labels)},
         cache_dir=args.cache_dir if args.cache_dir else None,
     )
     tokenizer = tokenizer_class.from_pretrained(