@langchain/core
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Core LangChain.js abstractions and schemas
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{"version":3,"file":"stores.d.ts","names":["Serializable","BaseStore","K","V","Promise","AsyncGenerator","InMemoryStore","T","Record"],"sources":["../src/stores.d.ts"],"sourcesContent":["import { Serializable } from \"./load/serializable.js\";\n/**\n * Abstract interface for a key-value store.\n */\nexport declare abstract class BaseStore<K, V> extends Serializable {\n /**\n * Abstract method to get multiple values for a set of keys.\n * @param {K[]} keys - An array of keys.\n * @returns {Promise<(V | undefined)[]>} - A Promise that resolves with array of values or undefined if key not found.\n */\n abstract mget(keys: K[]): Promise<(V | undefined)[]>;\n /**\n * Abstract method to set a value for multiple keys.\n * @param {[K, V][]} keyValuePairs - An array of key-value pairs.\n * @returns {Promise<void>} - A Promise that resolves when the operation is complete.\n */\n abstract mset(keyValuePairs: [K, V][]): Promise<void>;\n /**\n * Abstract method to delete multiple keys.\n * @param {K[]} keys - An array of keys to delete.\n * @returns {Promise<void>} - A Promise that resolves when the operation is complete.\n */\n abstract mdelete(keys: K[]): Promise<void>;\n /**\n * Abstract method to yield keys optionally based on a prefix.\n * @param {string} prefix - Optional prefix to filter keys.\n * @returns {AsyncGenerator<K | string>} - An asynchronous generator that yields keys on iteration.\n */\n abstract yieldKeys(prefix?: string): AsyncGenerator<K | string>;\n}\n/**\n * In-memory implementation of the BaseStore using a dictionary. Used for\n * storing key-value pairs in memory.\n * @example\n * ```typescript\n * const store = new InMemoryStore<BaseMessage>();\n * await store.mset(\n * Array.from({ length: 5 }).map((_, index) => [\n * `message:id:${index}`,\n * index % 2 === 0\n * ? new AIMessage(\"ai stuff...\")\n * : new HumanMessage(\"human stuff...\"),\n * ]),\n * );\n *\n * const retrievedMessages = await store.mget([\"message:id:0\", \"message:id:1\"]);\n * await store.mdelete(await store.yieldKeys(\"message:id:\").toArray());\n * ```\n */\nexport declare class InMemoryStore<T = any> extends BaseStore<string, T> {\n lc_namespace: string[];\n protected store: Record<string, T>;\n /**\n * Retrieves the values associated with the given keys from the store.\n * @param keys Keys to retrieve values for.\n * @returns Array of values associated with the given keys.\n */\n mget(keys: string[]): Promise<T[]>;\n /**\n * Sets the values for the given keys in the store.\n * @param keyValuePairs Array of key-value pairs to set in the store.\n * @returns Promise that resolves when all key-value pairs have been set.\n */\n mset(keyValuePairs: [string, T][]): Promise<void>;\n /**\n * Deletes the given keys and their associated values from the store.\n * @param keys Keys to delete from the store.\n * @returns Promise that resolves when all keys have been deleted.\n */\n mdelete(keys: string[]): Promise<void>;\n /**\n * Asynchronous generator that yields keys from the store. If a prefix is\n * provided, it only yields keys that start with the prefix.\n * @param prefix Optional prefix to filter keys.\n * @returns AsyncGenerator that yields keys from the store.\n */\n yieldKeys(prefix?: string | undefined): AsyncGenerator<string>;\n}\n//# sourceMappingURL=stores.d.ts.map"],"mappings":";;;;;;AAIA;AAMwBE,uBANMD,SAMNC,CAAAA,CAAAA,EAAAA,CAAAA,CAAAA,SAN8BF,YAAAA,CAM9BE;EAAeC;;;;;EAYZD,SAAAA,IAAAA,CAAAA,IAAAA,EAZHA,CAYGA,EAAAA,CAAAA,EAZGE,OAYHF,CAAAA,CAZYC,CAYZD,GAAAA,SAAAA,CAAAA,EAAAA,CAAAA;EAAME;;;;AAlBiC;EA6C7CE,SAAAA,IAAAA,CAAAA,aAAaC,EAAA,CAjCAL,CAiCA,EAjCGC,CAiCH,CAAA,EAAA,CAAA,EAjCUC,OAiCV,CAAA,IAAA,CAAA;EAAoCG;;;;;EAcrCA,SAAAA,OAAAA,CAAAA,IAAAA,EAzCNL,CAyCMK,EAAAA,CAAAA,EAzCAH,OAyCAG,CAAAA,IAAAA,CAAAA;EAAOH;;;;AAdqB;uCArBpBC,eAAeH;;;;;;;;;;;;;;;;;;;;;cAqBnCI,+BAA+BL,kBAAkBM;;mBAEjDC,eAAeD;;;;;;wBAMVH,QAAQG;;;;;;+BAMDA,OAAOH;;;;;;2BAMXA;;;;;;;0CAOeC"}