Public
Script
October 23, 2023
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import { getLangSmithBuilder } from "https://esm.town/v/webup/getLangSmithBuilder";
import { getModelBuilder } from "https://esm.town/v/webup/getModelBuilder";
export const pipeSampleMap = (async () => {
const { PromptTemplate } = await import("npm:langchain/prompts");
const { RunnableSequence } = await import("npm:langchain/schema/runnable");
const { StringOutputParser } = await import(
"npm:langchain/schema/output_parser"
);
const prompt1 = PromptTemplate.fromTemplate(
`What is the city {person} is from? Only respond with the name of the city.`,
);
const prompt2 = PromptTemplate.fromTemplate(
`What country is the city {city} in? Respond in {language}.`,
);
const mb = await getModelBuilder();
const model = await mb();
const tb = await getLangSmithBuilder();
const tracer = await tb();
const chain = prompt1.pipe(model).pipe(new StringOutputParser());
const combinedChain = RunnableSequence.from([
{
city: chain,
language: (input) => input.language,
},
prompt2,
model,
new StringOutputParser(),
]);
return await combinedChain.invoke({
person: "Chairman Mao",
language: "Chinese",
}, { callbacks: [tracer] });
})();
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October 23, 2023