final_answer from smolagents repo: `src/smolagents/prompts/code_agent.yaml`

prompts.yaml

@@ -320,7 +320,8 @@
     Here is the final answer from your managed agent '{{name}}':
     {{final_answer}}
 "final_answer":
-  "pre_messages": |-
-    .
-  "post_messages": |-
-    .
+  pre_messages: |-
+    An agent tried to answer a user query but it got stuck and failed to do so. You are tasked with providing an answer instead. Here is the agent's memory:
+  post_messages: |-
+    Based on the above, please provide an answer to the following user task:
+    {{task}}