Fix cohere bug

instructor/reask.py

@@ -88,9 +88,10 @@ def reask_cohere_tools(
     attempt_number: int = 1,
 ):
     if attempt_number == 1:
-        kwargs["chat_history"].extend(
-            [{"role": "user", "message": kwargs.get("message")}]
-        )
+        chat_history = kwargs.get("chat_history", [])
+        chat_history.append({"role": "user", "message": kwargs.get("message")})
+        kwargs["chat_history"] = chat_history
+
     kwargs["message"] = (
         f"Correct the following JSON response, based on the errors given below:\n\n"
         f"JSON:\n{response.text}\n\nExceptions:\n{exception}"

instructor/templating.py

@@ -83,9 +83,9 @@ def handle_templating(
     # Handle Cohere's message field
     if "message" in new_kwargs:
         new_kwargs["message"] = apply_template(new_kwargs["message"], context)
-        new_kwargs["chat_history"] = handle_templating(
-            new_kwargs["chat_history"], context
-        )
+        for message in new_kwargs["chat_history"]:
+            process_message(message, context)
+
         return new_kwargs
 
     if isinstance(new_kwargs, list):