Prompt essence decryption and Evaluation actual combat and source code analysis (2)

9.4 Analysis of source code of Evaluation for Agents
As shown in Figure 9-4, turn around and look at the source code of LangChain framework agent evaluation (Evaluation for Agents).

Figure 9- 4 LangChain's evaluation agents directory

In the trajectory_eval_prompt.py file, a very classic prompt word is written.

1.	"""提示轨迹评估链."""
2.	# flake8: noqa
3.	from langchain.schema import AIMessage
4.	from langchain.schema import HumanMessage
5.