Update config.json

config.json

@@ -238,5 +238,7 @@
   "tie_word_embeddings": false,
   "tokenizer_class": "mbart50",
   "torch_dtype": "float32",
-  "transformers_version": null
+  "transformers_version": null,
+  "num_beams": 5,
+  "max_length": 200
 }