Unverified90% confidenceFactTime unknown
RunnableParallel可以同时执行多个检索器，分别从不同数据源获取上下文信息，并将结果合并为一个字典输出
1
Sources
90%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
LangChain LCEL表达式语言详解：管道操作符、RunnableLambda与并行执行实战
youtubeJames Briggs
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