/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */
import type { Context } from '@nocobase/actions';
import { StdioConnection, StreamableHTTPConnection } from '@langchain/mcp-adapters';
import { StructuredToolInterface } from '@langchain/core/tools';
import type { MCPEntry, MCPOptions } from './types';
type MCPConnection = StdioConnection | StreamableHTTPConnection;
export type UserContextMCPClientManagerOptions = {
    app: any;
    listEntries: () => Promise<MCPEntry[]>;
    buildConnection: (options: MCPOptions) => MCPConnection;
    ttlMs?: number;
    maxSize?: number;
};
export declare class UserContextMCPClientManager {
    private readonly options;
    private readonly cache;
    private readonly ttlMs;
    private readonly maxSize;
    constructor(options: UserContextMCPClientManagerOptions);
    getToolsMap(ctx: Context): Promise<Record<string, StructuredToolInterface[]>>;
    clear(): Promise<void>;
    private evictExpired;
    private evictOversized;
    private closeEntry;
}
export {};