[HANDS-ON BUG] Creating a RAG Tool for Guest Stories | Step 3 | langgraph

The last line of the code for langgraph framework needs to be corrected for using "response: instead "messages":

print(messages['messages'][-1].content) -> print(response['messages'][-1].content)

The original line gives the error:

print(messages['messages'][-1].content)
~~~~~~~~^^^^^^^^^^^^
TypeError: list indices must be integers or slices, not str