import type { SshConnection } from '../types/connections.js';
export declare class SSHClient {
    private ssh;
    private server;
    private connected;
    constructor(server: SshConnection);
    /**
     * 展开路径中的 ~ 为用户主目录（跨平台兼容）
     */
    private expandPath;
    connect(): Promise<void>;
    execute(command: string): Promise<string>;
    executeWithOutput(command: string): Promise<{
        stdout: string;
        stderr: string;
        exitCode: number;
    }>;
    executeWithInput(command: string, stdin: string): Promise<{
        stdout: string;
        stderr: string;
        exitCode: number;
    }>;
    isConnected(): boolean;
    disconnect(): Promise<void>;
}