LengthBasedExampleSelector

const exampleSelector = new LengthBasedExampleSelector(
  [
    { input: "happy", output: "sad" },
    { input: "tall", output: "short" },
    { input: "energetic", output: "lethargic" },
    { input: "sunny", output: "gloomy" },
    { input: "windy", output: "calm" },
  ],
  {
    examplePrompt: new PromptTemplate({
      inputVariables: ["input", "output"],
      template: "Input: {input}\nOutput: {output}",
    }),
    maxLength: 25,
  },
);
const dynamicPrompt = new FewShotPromptTemplate({
  exampleSelector,
  examplePrompt: new PromptTemplate({
    inputVariables: ["input", "output"],
    template: "Input: {input}\nOutput: {output}",
  }),
  prefix: "Give the antonym of every input",
  suffix: "Input: {adjective}\nOutput:",
  inputVariables: ["adjective"],
});
console.log(dynamicPrompt.format({ adjective: "big" }));
console.log(
  dynamicPrompt.format({
    adjective:
      "big and huge and massive and large and gigantic and tall and much much much much much bigger than everything else",
  }),
);