import { type ChildProcess } from 'node:child_process';
import { type MockServer } from './server.ts';
import type { MockServerConfig } from './types.ts';
export interface LaunchStackOptions {
    config: MockServerConfig;
    clientCommand: string | string[];
    port?: number;
    cwd?: string;
    clientEnv?: (port: number) => Record<string, string>;
    tieLifetimes?: boolean;
    clientExitGraceMs?: number;
}
export interface LaunchedStack {
    server: MockServer;
    port: number;
    client: ChildProcess;
    clientExited: Promise<number | null>;
    stop(): Promise<void>;
}
export declare function launchStack(options: LaunchStackOptions): Promise<LaunchedStack>;