import { VectorStore } from '@langchain/core/vectorstores';
import { Provider, ValueOrPromise } from '@loopback/core';
import { EmbeddingProvider } from '../../../../types';
import { juggler } from '@loopback/repository';
export declare class PgVectorStore implements Provider<VectorStore> {
    private readonly embeddingModel;
    private pgDataSource;
    constructor(embeddingModel: EmbeddingProvider, pgDataSource: juggler.DataSource);
    value(): ValueOrPromise<VectorStore>;
}