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PregelNode | API Reference

• API Reference
• langgraph
• PregelNode

• RunInput = PregelNodeInputType
• RunOutput = PregelNodeOutputType

• RunnableBinding<RunInput, RunOutput, RunnableConfig>
  • PregelNode

• Defined in libs/langgraph/dist/pregel/read.d.ts:29

• new PregelNode<RunInput, RunOutput>(fields): PregelNode<RunInput, RunOutput>
• Type Parameters
  • RunInput = any
  • RunOutput = any
  Returns PregelNode<RunInput, RunOutput>

  Overrides RunnableBinding<RunInput, RunOutput, RunnableConfig>.constructor

  • Defined in libs/langgraph/dist/pregel/read.d.ts:43

Overrides RunnableBinding.bound

• Defined in libs/langgraph/dist/pregel/read.d.ts:35

cachePolicy?: CachePolicy

• Defined in libs/langgraph/dist/pregel/read.d.ts:40

channels: string[] | Record<string, string>

• Defined in libs/langgraph/dist/pregel/read.d.ts:31

config: RunnableConfig<Record<string, any>>

Inherited from RunnableBinding.config

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:371

configFactories?: ((config) => RunnableConfig<Record<string, any>> | Promise<RunnableConfig<Record<string, any>>>)[]

• • (config): RunnableConfig<Record<string, any>> | Promise<RunnableConfig<Record<string, any>>>
  • Parameters
    • config: RunnableConfig<Record<string, any>>
    Returns RunnableConfig<Record<string, any>> | Promise<RunnableConfig<Record<string, any>>>

Inherited from RunnableBinding.configFactories

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:373

ends?: string[]

• Defined in libs/langgraph/dist/pregel/read.d.ts:42

kwargs: Record<string, any>

Overrides RunnableBinding.kwargs

• Defined in libs/langgraph/dist/pregel/read.d.ts:36

lc_graph_name: string

• Defined in libs/langgraph/dist/pregel/read.d.ts:30

lc_kwargs: SerializedFields

Inherited from RunnableBinding.lc_kwargs

• Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:27

lc_namespace: string[]

Inherited from RunnableBinding.lc_namespace

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:368

lc_runnable: boolean

Inherited from RunnableBinding.lc_runnable

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:25

lc_serializable: boolean

Inherited from RunnableBinding.lc_serializable

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:369

mapper?: ((args) => any)

• • (args): any
  • Returns any

• Defined in libs/langgraph/dist/pregel/read.d.ts:33

metadata: Record<string, unknown>

• Defined in libs/langgraph/dist/pregel/read.d.ts:37

name?: string

Inherited from RunnableBinding.name

• Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:26

• Defined in libs/langgraph/dist/pregel/read.d.ts:39

subgraphs?: Runnable<any, any, RunnableConfig<Record<string, any>>>[]

• Defined in libs/langgraph/dist/pregel/read.d.ts:41

tags: string[]

• Defined in libs/langgraph/dist/pregel/read.d.ts:38

triggers: string[]

• Defined in libs/langgraph/dist/pregel/read.d.ts:32

writers: Runnable<any, any, RunnableConfig<Record<string, any>>>[]

• Defined in libs/langgraph/dist/pregel/read.d.ts:34

• get lc_aliases(): undefined | {
      [key: string]: string;
  }
• Returns undefined | {
      [key: string]: string;
  }

  Inherited from RunnableBinding.lc_aliases

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:65

• get lc_attributes(): undefined | SerializedFields
• Returns undefined | SerializedFields

  Inherited from RunnableBinding.lc_attributes

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:58

• get lc_id(): string[]
• Returns string[]

  Inherited from RunnableBinding.lc_id

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:43

• get lc_secrets(): undefined | {
      [key: string]: string;
  }
• Returns undefined | {
      [key: string]: string;
  }

  Inherited from RunnableBinding.lc_secrets

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:49

• get lc_serializable_keys(): undefined | string[]
• Returns undefined | string[]

  Inherited from RunnableBinding.lc_serializable_keys

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:72

• _batchWithConfig<T>(func, inputs, options?, batchOptions?): Promise<(Error | RunOutput)[]>
• Type Parameters
  • T
  Parameters
  • func: ((inputs, options?, runManagers?, batchOptions?) => Promise<(Error | RunOutput)[]>)
    • • (inputs, options?, runManagers?, batchOptions?): Promise<(Error | RunOutput)[]>
      • Parameters
        • inputs: T[]
        • Optional options: Partial<RunnableConfig<Record<string, any>>>[]
        • Optional runManagers: (undefined | CallbackManagerForChainRun)[]
        • Optional batchOptions: RunnableBatchOptions
        Returns Promise<(Error | RunOutput)[]>
  • inputs: T[]
  • Optional options: Partial<RunnableConfig<Record<string, any>> & {
        runType?: string;
    }> | Partial<RunnableConfig<Record<string, any>> & {
        runType?: string;
    }>[]
  • Optional batchOptions: RunnableBatchOptions
  Returns Promise<(Error | RunOutput)[]>

  A promise that resolves to the output values.

  Inherited from RunnableBinding._batchWithConfig

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:114

• _callWithConfig<T>(func, input, options?): Promise<RunOutput>
• Type Parameters
  • T
  Parameters
  • func: ((input) => Promise<RunOutput>) | ((input, config?, runManager?) => Promise<RunOutput>)
  • input: T
  • Optional options: Partial<RunnableConfig<Record<string, any>>> & {
        runType?: string;
    }
  Returns Promise<RunOutput>

  Inherited from RunnableBinding._callWithConfig

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:102

• _getOptionsList<O>(options, length?): Partial<O>[]
• Type Parameters
  • O extends RunnableConfig<Record<string, any>> & {
        runType?: string;
    }
  Parameters
  • options: Partial<O> | Partial<O>[]
  • Optional length: number
  Returns Partial<O>[]

  Inherited from RunnableBinding._getOptionsList

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:69

• _mergeConfig(...options): Promise<Partial<RunnableConfig<Record<string, any>>>>
• Parameters
  • Rest ...options: (undefined | RunnableConfig<Record<string, any>> | Partial<RunnableConfig<Record<string, any>>>)[]
  Returns Promise<Partial<RunnableConfig<Record<string, any>>>>

  Inherited from RunnableBinding._mergeConfig

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:376

• _separateRunnableConfigFromCallOptions(options?): [RunnableConfig<Record<string, any>>, Omit<Partial<RunnableConfig<Record<string, any>>>, keyof RunnableConfig<Record<string, any>>>]
• Parameters
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  Returns [RunnableConfig<Record<string, any>>, Omit<Partial<RunnableConfig<Record<string, any>>>, keyof RunnableConfig<Record<string, any>>>]

  Inherited from RunnableBinding._separateRunnableConfigFromCallOptions

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:101

• _streamIterator(input, options?): AsyncGenerator<Awaited<RunOutput>, void, any>
• Parameters
  • input: RunInput
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  Returns AsyncGenerator<Awaited<RunOutput>, void, any>

  Inherited from RunnableBinding._streamIterator

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:398

• _streamLog(input, logStreamCallbackHandler, config): AsyncGenerator<RunLogPatch, any, any>
• Parameters
  • input: RunInput
  • logStreamCallbackHandler: LogStreamCallbackHandler
  • config: Partial<RunnableConfig<Record<string, any>>>
  Returns AsyncGenerator<RunLogPatch, any, any>

  Inherited from RunnableBinding._streamLog

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:163

• _transformStreamWithConfig<I, O>(inputGenerator, transformer, options?): AsyncGenerator<O, any, any>
• Type Parameters
  • I
  • O
  Parameters
  • inputGenerator: AsyncGenerator<I, any, any>
  • transformer: ((generator, runManager?, options?) => AsyncGenerator<O, any, any>)
    • • (generator, runManager?, options?): AsyncGenerator<O, any, any>
      • Parameters
        • generator: AsyncGenerator<I, any, any>
        • Optional runManager: CallbackManagerForChainRun
        • Optional options: Partial<RunnableConfig<Record<string, any>>>
        Returns AsyncGenerator<O, any, any>
  • Optional options: Partial<RunnableConfig<Record<string, any>>> & {
        runType?: string;
    }
  Returns AsyncGenerator<O, any, any>

  Inherited from RunnableBinding._transformStreamWithConfig

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:124

• asTool<T>(fields): RunnableToolLike<InteropZodType<ToolCall | T>, RunOutput>
• Type Parameters
  • T = RunInput
  Parameters
  • fields: {
        description?: string;
        name?: string;
        schema: InteropZodType<T>;
    }
    • Optional description?: string
    • Optional name?: string
    • schema: InteropZodType<T>
  Returns RunnableToolLike<InteropZodType<ToolCall | T>, RunOutput>

  An instance of RunnableToolLike which is a runnable that can be used as a tool.

  Inherited from RunnableBinding.asTool

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:310

• assign(mapping): Runnable<any, any, RunnableConfig<Record<string, any>>>
• Parameters
  • mapping: RunnableMapLike<Record<string, unknown>, Record<string, unknown>>
  Returns Runnable<any, any, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.assign

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:142

• batch(inputs, options?, batchOptions?): Promise<RunOutput[]>
• Parameters
  • inputs: RunInput[]
  • Optional options: Partial<RunnableConfig<Record<string, any>>> | Partial<RunnableConfig<Record<string, any>>>[]
  • Optional batchOptions: RunnableBatchOptions & {
        returnExceptions?: false;
    }
  Returns Promise<RunOutput[]>

  Inherited from RunnableBinding.batch

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:391
• batch(inputs, options?, batchOptions?): Promise<(Error | RunOutput)[]>
• Parameters
  • inputs: RunInput[]
  • Optional options: Partial<RunnableConfig<Record<string, any>>> | Partial<RunnableConfig<Record<string, any>>>[]
  • Optional batchOptions: RunnableBatchOptions & {
        returnExceptions: true;
    }
  Returns Promise<(Error | RunOutput)[]>

  Inherited from RunnableBinding.batch

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:394
• batch(inputs, options?, batchOptions?): Promise<(Error | RunOutput)[]>
• Parameters
  • inputs: RunInput[]
  • Optional options: Partial<RunnableConfig<Record<string, any>>> | Partial<RunnableConfig<Record<string, any>>>[]
  • Optional batchOptions: RunnableBatchOptions
  Returns Promise<(Error | RunOutput)[]>

  Inherited from RunnableBinding.batch

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:397

• bind(kwargs): RunnableBinding<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
• Parameters
  • kwargs: Partial<RunnableConfig<Record<string, any>>>
  Returns RunnableBinding<RunInput, RunOutput, RunnableConfig<Record<string, any>>>

  A new instance of the RunnableBinding class that is bound with the specified arguments.

  Inherited from RunnableBinding.bind

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:384

• getGraph(_?): Graph
• Parameters
  • Optional _: RunnableConfig<Record<string, any>>
  Returns Graph

  Inherited from RunnableBinding.getGraph

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:127

• getName(suffix?): string
• Parameters
  • Optional suffix: string
  Returns string

  Inherited from RunnableBinding.getName

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:375

• getNode(): undefined | Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
• Returns undefined | Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
  • Defined in libs/langgraph/dist/pregel/read.d.ts:45

• getWriters(): Runnable<any, any, RunnableConfig<Record<string, any>>>[]
• Returns Runnable<any, any, RunnableConfig<Record<string, any>>>[]
  • Defined in libs/langgraph/dist/pregel/read.d.ts:44

• invoke(input, options?): Promise<RunOutput>
• Parameters
  • input: RunInput
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  Returns Promise<RunOutput>

  Inherited from RunnableBinding.invoke

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:390

• join(channels): PregelNode<RunInput, RunOutput>
• Parameters
  • channels: string[]
  Returns PregelNode<RunInput, RunOutput>
  • Defined in libs/langgraph/dist/pregel/read.d.ts:46

• map(): Runnable<RunInput[], RunOutput[], RunnableConfig<Record<string, any>>>
• Returns Runnable<RunInput[], RunOutput[], RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.map

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:43

• pick(keys): Runnable<any, any, RunnableConfig<Record<string, any>>>
• Parameters
  • keys: string | string[]
  Returns Runnable<any, any, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.pick

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:138

• pipe<NewRunOutput>(coerceable): PregelNode<RunInput, Exclude<NewRunOutput, Error>>
• Type Parameters
  • NewRunOutput
  Parameters
  • coerceable: RunnableLike
  Returns PregelNode<RunInput, Exclude<NewRunOutput, Error>>

  Overrides RunnableBinding.pipe

  • Defined in libs/langgraph/dist/pregel/read.d.ts:47

• stream(input, options?): Promise<IterableReadableStream<RunOutput>>
• Parameters
  • input: RunInput
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  Returns Promise<IterableReadableStream<RunOutput>>

  Inherited from RunnableBinding.stream

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:399

• streamEvents(input, options, streamOptions?): IterableReadableStream<StreamEvent>
• Parameters
  • input: RunInput
  • options: Partial<RunnableConfig<Record<string, any>>> & {
        version: "v1" | "v2";
    }
  • Optional streamOptions: Omit<LogStreamCallbackHandlerInput, "autoClose">
  Returns IterableReadableStream<StreamEvent>

  Inherited from RunnableBinding.streamEvents

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:401
• streamEvents(input, options, streamOptions?): IterableReadableStream<Uint8Array<ArrayBufferLike>>
• Parameters
  • input: RunInput
  • options: Partial<RunnableConfig<Record<string, any>>> & {
        encoding: "text/event-stream";
        version: "v1" | "v2";
    }
  • Optional streamOptions: Omit<LogStreamCallbackHandlerInput, "autoClose">
  Returns IterableReadableStream<Uint8Array<ArrayBufferLike>>

  Inherited from RunnableBinding.streamEvents

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:404

• streamLog(input, options?, streamOptions?): AsyncGenerator<RunLogPatch, any, any>
• Parameters
  • input: RunInput
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  • Optional streamOptions: Omit<LogStreamCallbackHandlerInput, "autoClose">
  Returns AsyncGenerator<RunLogPatch, any, any>

  Inherited from RunnableBinding.streamLog

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:162

• toJSON(): Serialized
• Returns Serialized

  Inherited from RunnableBinding.toJSON

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:74

• toJSONNotImplemented(): SerializedNotImplemented
• Returns SerializedNotImplemented

  Inherited from RunnableBinding.toJSONNotImplemented

  • Defined in node_modules/@langchain/core/dist/load/serializable.d.ts:75

• transform(generator, options?): AsyncGenerator<RunOutput, any, any>
• Parameters
  • generator: AsyncGenerator<RunInput, any, any>
  • Optional options: Partial<RunnableConfig<Record<string, any>>>
  Returns AsyncGenerator<RunOutput, any, any>

  Inherited from RunnableBinding.transform

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:400

• withConfig(config): Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
• Parameters
  • config: Partial<RunnableConfig<Record<string, any>>>
  Returns Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.withConfig

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:385

• withFallbacks(fields): RunnableWithFallbacks<RunInput, RunOutput>
• Parameters
  • fields: {
        fallbacks: Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>[];
    } | Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>[]
  Returns RunnableWithFallbacks<RunInput, RunOutput>

  A new RunnableWithFallbacks.

  Inherited from RunnableBinding.withFallbacks

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:66

• withListeners(params): Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
• Parameters
  • params: {
        onEnd?: ((run, config?) => void | Promise<void>);
        onError?: ((run, config?) => void | Promise<void>);
        onStart?: ((run, config?) => void | Promise<void>);
    }
    • Optional onEnd?: ((run, config?) => void | Promise<void>)
      • • (run, config?): void | Promise<void>
        • Parameters
          • run: Run
          • Optional config: RunnableConfig<Record<string, any>>
          Returns void | Promise<void>
    • Optional onError?: ((run, config?) => void | Promise<void>)
      • • (run, config?): void | Promise<void>
        • Parameters
          • run: Run
          • Optional config: RunnableConfig<Record<string, any>>
          Returns void | Promise<void>
    • Optional onStart?: ((run, config?) => void | Promise<void>)
      • • (run, config?): void | Promise<void>
        • Parameters
          • run: Run
          • Optional config: RunnableConfig<Record<string, any>>
          Returns void | Promise<void>
  Returns Runnable<RunInput, RunOutput, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.withListeners

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:420

• withRetry(fields?): RunnableRetry<RunInput, RunOutput, RunnableConfig<Record<string, any>>>
• Parameters
  • Optional fields: {
        onFailedAttempt?: RunnableRetryFailedAttemptHandler;
        stopAfterAttempt?: number;
    }
    • Optional onFailedAttempt?: RunnableRetryFailedAttemptHandler
    • Optional stopAfterAttempt?: number
  Returns RunnableRetry<RunInput, RunOutput, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.withRetry

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:386

• isRunnable(thing): thing is Runnable<any, any, RunnableConfig<Record<string, any>>>
• Returns thing is Runnable<any, any, RunnableConfig<Record<string, any>>>

  Inherited from RunnableBinding.isRunnable

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:281

• isRunnableBinding(thing): thing is RunnableBinding<any, any, any>
• Returns thing is RunnableBinding<any, any, any>

  Inherited from RunnableBinding.isRunnableBinding

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:408

• lc_name(): string
• Returns string

  Inherited from RunnableBinding.lc_name

  • Defined in node_modules/@langchain/core/dist/runnables/base.d.ts:367

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