Update config.json

config.json

@@ -46,5 +46,8 @@
     "image_size": 448,
     "model_type": "chexagent_vision_model",
     "num_hidden_layers": 40
+  },
+  "auto_map": {
+    "AutoModelForCausalLM": "modeling_chexagent.CheXagentForConditionalGeneration"
   }
 }