/**
 * Spawner seam. Broken out from the runner so tests can substitute
 * a fake child process without touching the filesystem or launching
 * a real OS process.
 *
 * Kept minimal — only the shape the sandbox actually uses. Real
 * production wiring imports `spawn` from `node:child_process`.
 */
import type { ChildProcess } from 'node:child_process';
export type Spawner = (command: string, args: readonly string[], options: SpawnerOptions) => ChildProcess;
export interface SpawnerOptions {
    readonly cwd: string;
    readonly env: NodeJS.ProcessEnv;
    readonly stdio: ['pipe', 'pipe', 'pipe'];
    readonly shell: false;
    readonly detached: false;
    readonly windowsHide: true;
}
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