import type { ExtractedValue, ExtractedValueStore, MemoryBlockScope } from '@kuralle-agents/core';
import type { QueryResult } from 'pg';
type PostgresClient = {
    query: (text: string, params?: unknown[]) => Promise<QueryResult>;
};
export type PostgresExtractedValueStoreOptions = {
    client: PostgresClient;
    tableName?: string;
    autoMigrate?: boolean;
};
export declare class PostgresExtractedValueStore implements ExtractedValueStore {
    private client;
    private table;
    private ready;
    constructor(options: PostgresExtractedValueStoreOptions);
    private init;
    load(scope: MemoryBlockScope, owner: string, slug: string): Promise<ExtractedValue | null>;
    save(value: ExtractedValue, owner: string): Promise<void>;
    delete(scope: MemoryBlockScope, owner: string, slug: string): Promise<void>;
}
export {};