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修复 docs/guide/chapter4.md 中 RunnableMap 示例的 target_audience 传递逻辑 #85

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修复 docs/guide/chapter4.md 中 RunnableMap 示例的 target_audience 传递逻辑 #85

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3 changes: 2 additions & 1 deletion docs/guide/chapter4.md
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Expand Up @@ -208,11 +208,12 @@ marketing_prompt = PromptTemplate(
)

# 3. 多输入多输出线性链（教学标准版）

overall_chain = (
# Step 1：生成卖点 + 透传原始输入
RunnableMap({
"sell_points": sell_point_prompt | llm | (lambda x: x.content),
"target_audience": RunnablePassthrough(),
"target_audience": lambda x: x["target_audience"],
})
# Step 2：营销话术生成
| marketing_prompt
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