@langchain/langgraph/dist/func/types.d.ts.map

LangGraph

{"version":3,"file":"types.d.ts","names":["LangGraphRunnableConfig","EntrypointFinal","ValueT","SaveT","isEntrypointFinal","EntrypointReturnT","OutputT","Promise","EntrypointFinalSaveT","EntrypointFinalValueT","AsyncGeneratorExists","AsyncGenerator","EntrypointFunc","InputT","Generator","TaskFunc","ArgsT"],"sources":["../../src/func/types.d.ts"],"sourcesContent":["import { LangGraphRunnableConfig } from \"../pregel/runnable_types.js\";\n/**\n * Allows the entrypoint function to return a value to the caller, as well as a separate state value to persist to the checkpoint\n */\nexport type EntrypointFinal<ValueT, SaveT> = {\n    /**\n     * The value to return to the caller\n     */\n    value?: ValueT;\n    /**\n     * The value to save to the checkpoint\n     */\n    save?: SaveT;\n    __lg_type: \"__pregel_final\";\n};\n/**\n * Checks if a value is an EntrypointFinal - use this instead of `instanceof`, as value may have been deserialized\n * @param value The value to check\n * @returns Whether the value is an EntrypointFinal\n */\nexport declare function isEntrypointFinal<ValueT, SaveT>(value: unknown): value is EntrypointFinal<ValueT, SaveT>;\n/**\n * The return type of an entrypoint function.\n */\nexport type EntrypointReturnT<OutputT> = OutputT extends EntrypointFinal<infer ValueT, unknown> | Promise<EntrypointFinal<infer ValueT, unknown>> ? ValueT : OutputT;\n/**\n * The value to be saved when a function returns an EntrypointFinal.\n */\nexport type EntrypointFinalSaveT<OutputT> = OutputT extends EntrypointFinal<unknown, infer SaveT> | Promise<EntrypointFinal<unknown, infer SaveT>> ? SaveT : OutputT;\n/**\n * The value to be returned when a function returns an EntrypointFinal.\n */\nexport type EntrypointFinalValueT<OutputT> = OutputT extends EntrypointFinal<infer ValueT, infer SaveT> | Promise<EntrypointFinal<infer ValueT, infer SaveT>> ? EntrypointFinal<ValueT, SaveT> : OutputT;\n/**\n * Checks if an AsyncGenerator exists in the ES target/lib that we're compiling to.\n *\n * This is necessary because `tsc --init` targets ES2016 by default, which doesn't include AsyncGenerators.\n *\n * This works because when `skipLibCheck` is true (and it is in the default `tsconfig.json` created by `tsc --init`),\n * TypeScript will replace any unresolved library types with `any`. So, when `AsyncGenerator` doesn't exist, this checks\n * if `any` extends `object`, which it doesn't. When that happens, this type resolves to the `false` literal, and we can\n * use it in the type predicates below to skip over the AsyncGenerator-specific logic.\n *\n * If we didn't have this, then the types below would be checking if the user's function extends `any` in place of the\n * `AsyncGenerator` type, and the type predicate would branch to `never`, disallowing any valid function from being passed\n * to `task` or `entrypoint`.\n */\ntype AsyncGeneratorExists = AsyncGenerator<unknown, unknown, unknown> extends object ? true : false;\n/**\n * Matches valid function signatures for entrypoints. Disallows generator functions.\n */\nexport type EntrypointFunc<InputT, OutputT> = [OutputT] extends never ? (input: InputT, config: LangGraphRunnableConfig) => never : AsyncGeneratorExists extends true // only check if it may be an AsyncGenerator when those actually exist\n ? 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