/**
 * ZooKeeper Client - Stateless ZooKeeper client for reading Sentinel rules
 *
 * This client creates a new connection for each operation and closes it after use.
 * This ensures stateless operation suitable for MCP server usage.
 */
export declare class ZookeeperClient {
    private readonly defaultConfig;
    /**
     * Read data from a ZooKeeper node
     * Creates a new connection, reads data, and closes connection
     */
    getData(connectionString: string, path: string): Promise<string | null>;
    /**
     * Check if a node exists
     */
    exists(connectionString: string, path: string): Promise<boolean>;
    /**
     * Get children of a node
     */
    getChildren(connectionString: string, path: string): Promise<string[]>;
    /**
     * Create ZooKeeper client instance
     */
    private createClient;
    /**
     * Connect to ZooKeeper with timeout
     */
    private connect;
    /**
     * Read data from a node
     */
    private readNode;
    /**
     * Check if node exists
     */
    private checkExists;
    /**
     * List children of a node
     */
    private listChildren;
    /**
     * Close client connection
     */
    private closeClient;
}
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