Allow null values for chatTemplate and token

Author: sd109

chart/values.schema.json

@@ -12,12 +12,12 @@
                     "default": "mistralai/Mistral-7B-Instruct-v0.2"
                 },
                 "chatTemplate": {
-                    "type": "string",
+                    "type": ["string", "null"],
                     "title": "Chat Template",
                     "description": "An optional chat template override for the model (see [here](https://huggingface.co/blog/chat-templates) for more information)."
                 },
                 "token": {
-                    "type": "string",
+                    "type": ["string", "null"],
                     "title": "Access Token",
                     "description": "A HuggingFace [access token](https://huggingface.co/docs/hub/security-tokens). Only required for [gated models](https://huggingface.co/docs/hub/en/models-gated) (e.g. Llama 2)."
                 }