Class MultiPromptChain

A class that represents a multi-prompt chain in the LangChain framework. It extends the MultiRouteChain class and provides additional functionality specific to multi-prompt chains.

Example

const multiPromptChain = MultiPromptChain.fromLLMAndPrompts(new ChatOpenAI(), {
  promptNames: ["physics", "math", "history"],
  promptDescriptions: [
    "Good for answering questions about physics",
    "Good for answering math questions",
    "Good for answering questions about history",
  ],
  promptTemplates: [
    `You are a very smart physics professor. Here is a question:\n{input}\n`,
    `You are a very good mathematician. Here is a question:\n{input}\n`,
    `You are a very smart history professor. Here is a question:\n{input}\n`,
  ],
});
const result = await multiPromptChain.call({
  input: "What is the speed of light?",
});

Hierarchy (view full)

Constructors

constructor

Properties

defaultChain destinationChains routerChain silentErrors memory?

Accessors

inputKeys outputKeys

Methods

apply call invoke prepOutputs run serialize deserialize fromLLMAndPrompts fromPrompts

Constructors

constructor

Properties

defaultChain

defaultChain: BaseChain<ChainValues, ChainValues>

destinationChains

destinationChains: {
    [name: string]: BaseChain;
}

routerChain

routerChain: RouterChain

silentErrors

silentErrors: boolean = false

Optionalmemory

memory?: any

Accessors

inputKeys

outputKeys

Methods

apply

  • apply(inputs, config?): Promise<ChainValues[]>

  • Parameters

    • inputs: ChainValues[]
    • Optionalconfig: any[]

    Returns Promise<ChainValues[]>

    Deprecated

    Use .batch() instead. Will be removed in 0.2.0.

    Call the chain on all inputs in the list

call

  • call(values, config?, tags?): Promise<ChainValues>

  • Parameters

    • values: any
    • Optionalconfig: any
    • Optionaltags: string[]

      Deprecated

    Returns Promise<ChainValues>

    Deprecated

    Use .invoke() instead. Will be removed in 0.2.0.

    Run the core logic of this chain and add to output if desired.

    Wraps _call and handles memory.

invoke

  • invoke(input, options?): Promise<ChainValues>

  • Invoke the chain with the provided input and returns the output.

    Parameters

    • input: ChainValues

      Input values for the chain run.

    • Optionaloptions: any

    Returns Promise<ChainValues>

    Promise that resolves with the output of the chain run.

prepOutputs

  • prepOutputs(inputs, outputs, returnOnlyOutputs?): Promise<Record<string, unknown>>

  • Parameters

    • inputs: Record<string, unknown>
    • outputs: Record<string, unknown>
    • returnOnlyOutputs: boolean = false

    Returns Promise<Record<string, unknown>>

run

serialize

Staticdeserialize

StaticfromLLMAndPrompts

  • fromLLMAndPrompts(llm, __namedParameters): MultiPromptChain

  • A static method that creates an instance of MultiPromptChain from a BaseLanguageModel and a set of prompts. It takes in optional parameters for the default chain and additional options.

    Parameters

    • llm: BaseLanguageModelInterface

      A BaseLanguageModel instance.

    • __namedParameters: {
          promptDescriptions: string[];
          promptNames: string[];
          promptTemplates: string[] | PromptTemplate[];
          conversationChainOpts?: Omit<LLMChainInput<string, any>, "llm" | "outputKey">;
          defaultChain?: BaseChain<ChainValues, ChainValues>;
          llmChainOpts?: Omit<LLMChainInput<string, any>, "prompt" | "llm">;
          multiRouteChainOpts?: Omit<MultiRouteChainInput, "defaultChain">;
      }
      • promptDescriptions: string[]
      • promptNames: string[]
      • promptTemplates: string[] | PromptTemplate[]
      • OptionalconversationChainOpts?: Omit<LLMChainInput<string, any>, "llm" | "outputKey">
      • OptionaldefaultChain?: BaseChain<ChainValues, ChainValues>
      • OptionalllmChainOpts?: Omit<LLMChainInput<string, any>, "prompt" | "llm">
      • OptionalmultiRouteChainOpts?: Omit<MultiRouteChainInput, "defaultChain">

    Returns MultiPromptChain

    An instance of MultiPromptChain.

StaticfromPrompts

Settings

Member Visibility

On This Page

Constructors
Properties
Accessors
Methods