What are Runnables in Langchain Expression Language? - Deep Dive Part 2

In this video, I go over the Runnable Interface in more detail and show you how you can use it with Langchain Expressions Language in your langchain projects.

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[svb]

One of the best and most important videos with runnable example and walk thru. This is a hidden gem for budding GenAI minds

[alrighttheresham]

Thanks, Merc; really enjoyed this. Great detail that is missing from a lot of the tutorials. Only detail I have that I haven't seen answered elsewhere, is good examples of configurable_fields and configurable_alternatives used in chains, would love to see examples where chain inputs are used to construct later runnables in a chain, for example having something like the search_kwargs e.g. k configurable as an input to a retriever.

[estevegraells]

Thanks for the video Michael, very interesting.
I couldn't access the repo unfortunately.

[Kubex]

Great job with this explanation mike. Question, how do we pass more than one variable to the runnable when we invoke the chain? for example, if my prompt has 2 input vars like {height} and {weight}. i have a chain that looks looks like "chain = "({height: RunnablePassthrough}) and that works but if ii use chain = "({height: RunnablePassthrough(), "weight": RunnablePasstrough()} it only picks up one value (height) how do we pass multiple differing inputs?

[seththunder]

U need to continue thids... no1 has explained as good as you tbh

[shurkarbaba]

i want to know about runnable in parallel.