Class LengthBasedExampleSelector

A specialized example selector that selects examples based on their length, ensuring that the total length of the selected examples does not exceed a specified maximum length.

Example

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",
  }),
);

Hierarchy (view full)

Constructors

constructor

Properties

examplePrompt exampleTextLengths examples getTextLength maxLength

Methods

addExample calculateExampleTextLengths selectExamples toJSON toJSONNotImplemented fromExamples

Constructors

constructor

Properties

examplePrompt

examplePrompt: PromptTemplate<any, any>

exampleTextLengths

exampleTextLengths: number[] = []

Protectedexamples

examples: Example[] = []

getTextLength

getTextLength: ((text: string) => number) = getLengthBased

maxLength

maxLength: number = 2048

Methods

addExample

calculateExampleTextLengths

selectExamples

toJSON

toJSONNotImplemented

StaticfromExamples

Settings

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