Update tokenizer_config.json

tokenizer_config.json

@@ -910,5 +910,11 @@
   "model_max_length": 2048,
   "pad_token": null,
   "tokenizer_class": "CheXagentTokenizer",
-  "unk_token": "<|endoftext|>"
+  "unk_token": "<|endoftext|>",
+  "auto_map": {
+    "AutoTokenizer": [
+      "tokenization_chexagent.CheXagentTokenizer",
+      null
+      ]
+  }
 }