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@n8n/n8n-nodes-langchain

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/** * Simple Vector Store Node - Version 1.1 * Discriminator: mode=load */ /** Get many ranked documents from vector store for query */ export type LcVectorStoreInMemoryV11LoadParams = { /** * One-shot similarity search on the main flow using the `prompt` parameter. Declare with `vectorStore({...})`. Required subnodes: `embedding`. For LLM-driven querying (RAG), use `mode: 'retrieve-as-tool'` instead. * <patterns> * <pattern title="load mode — one-shot similarity search (generic)"> * // Substitute the type literal and provider-specific parameters — see the rest of this file. * const lookup = vectorStore({ * type: '@n8n/n8n-nodes-langchain.vectorStoreXxx', * config: { * name: 'Knowledge Base', * parameters: { * mode: 'load', * prompt: expr('{{ $json.query }}'), * // ...provider-specific parameters * }, * subnodes: { embedding: embeddingsOpenAi } * } * }); * </pattern> * </patterns> */ mode: 'load'; /** * The key to use to store the vector memory in the workflow data. The key will be prefixed with the workflow ID to avoid collisions. * @default vector_store_key */ memoryKey?: string | Expression<string>; /** * Search prompt to retrieve matching documents from the vector store using similarity-based ranking */ prompt: string | Expression<string>; /** * Number of top results to fetch from vector store * @default 4 */ topK?: number | Expression<number>; /** * Whether or not to include document metadata * @default true */ includeDocumentMetadata?: boolean | Expression<boolean>; /** * Whether or not to rerank results * @default false */ useReranker?: boolean | Expression<boolean>; }; export interface LcVectorStoreInMemoryV11LoadSubnodeConfig { embedding: EmbeddingInstance | EmbeddingInstance[]; /** * @displayOptions.show { useReranker: [true] } */ reranker: RerankerInstance; } export type LcVectorStoreInMemoryV11LoadNode = { type: '@n8n/n8n-nodes-langchain.vectorStoreInMemory'; version: 1.1; config: NodeConfig<LcVectorStoreInMemoryV11LoadParams> & { subnodes: LcVectorStoreInMemoryV11LoadSubnodeConfig }; };