Codestral with self-correction - ChatPromptTemplate.from_messages not used

[gh4ag]

Files

Cookbook recipe: "Codestral with self-correction"

In https://github.com/mistralai/cookbook/blob/main/third_party/langchain/langgraph_code_assistant_mistral.ipynb

Issue
The following code is not used:

code_gen_prompt_claude = ChatPromptTemplate.from_messages(
    [
        (
            "system", 
            """You are a coding assistant. Ensure any code you provide can be executed with all required imports and variables \n
            defined. Structure your answer: 1) a prefix describing the code solution, 2) the imports, 3) the functioning code block.
            \n Here is the user question:""",
        ),
        ("placeholder", "{messages}"),
    ]
)

And thus, this import can also be removed:

from langchain_core.prompts import ChatPromptTemplate

Tests

I ran the code in Colab, and it runs successfully without the dead code.