import type { ChildProcess } from 'node:child_process';
export declare function allocateFreePort(host: string): Promise<number>;
interface ServeCommand {
    readonly command: string;
    readonly baseArgs: readonly string[];
}
export declare function resolveCliVersion(): string | undefined;
export declare function cliSupportsApiKeyFile(serveBinPath?: string): boolean;
export declare function writeApiKeyFile(configPath: string, apiKey: string): string;
export declare function resolveServeCommand(serveBinPath?: string): ServeCommand;
export interface SpawnServeOptions {
    readonly apiKey: string;
    readonly configPath: string;
    readonly port: number;
    readonly host?: string;
    readonly startTimeoutMs?: number;
    readonly serveBinPath?: string;
    readonly fetchImpl?: typeof fetch;
}
export interface SpawnedServe {
    readonly child: ChildProcess;
    readonly pid: number;
    readonly port: number;
    readonly host: string;
    readonly baseURL: string;
}
export declare function spawnServe(options: SpawnServeOptions): Promise<SpawnedServe>;
export declare function stopServe(child: ChildProcess, graceMs?: number): Promise<void>;
export {};
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