Class MapReduceDocumentsChain

Combine documents by mapping a chain over them, then combining results.

Hierarchy

Implements

Constructors

Properties

combineDocumentChain: StuffDocumentsChain

Chain to use to combine results of applying llm_chain to documents.

documentVariableName: string = "context"

Variable name in the LLM chain to put the documents in

ensureMapStep: boolean = false

Ensures that the map step is taken regardless of max tokens

inputKey: string = "input_documents"
llmChain: LLMChain<string, LLMType>

LLM Wrapper to use after formatting documents

maxIterations: number = 10

The maximum number of iterations to run through the map

maxTokens: number = 3000

The maximum number of tokens before requiring to do the reduction

returnIntermediateSteps: boolean = false

Return the results of the map steps in the output.

verbose: boolean

Whether to print out response text.

callbacks?: Callbacks
memory?: BaseMemory
metadata?: Record<string, unknown>
tags?: string[]
lc_runnable: boolean = true

Accessors

Methods

  • Stream all output from a runnable, as reported to the callback system. This includes all inner runs of LLMs, Retrievers, Tools, etc. Output is streamed as Log objects, which include a list of jsonpatch ops that describe how the state of the run has changed in each step, and the final state of the run. The jsonpatch ops can be applied in order to construct state.

    Parameters

    Returns AsyncGenerator<RunLogPatch, any, unknown>

  • Helper method to transform an Iterator of Input values into an Iterator of Output values, with callbacks. Use this to implement stream() or transform() in Runnable subclasses.

    Type Parameters

    Parameters

    • inputGenerator: AsyncGenerator<I, any, unknown>
    • transformer: ((generator, runManager?, options?) => AsyncGenerator<O, any, unknown>)
        • (generator, runManager?, options?): AsyncGenerator<O, any, unknown>
        • Parameters

          Returns AsyncGenerator<O, any, unknown>

    • Optional options: BaseCallbackConfig & {
          runType?: string;
      }

    Returns AsyncGenerator<O, any, unknown>

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