/**
 * ngspice detection and sandboxed batch execution.
 *
 * Always uses `execFile` (never `exec`/`spawn` with `shell: true`), so deck content is
 * never interpreted by a shell. The deck is written to a dedicated, freshly-created temp
 * directory that is removed afterward regardless of success or failure.
 *
 * @module
 */
import type { NgspiceAvailability } from './types.js';
export declare function detectNgspice(binary?: string): Promise<NgspiceAvailability>;
export interface RunNgspiceOptions {
    binary?: string;
    timeoutMs?: number;
}
export interface RunNgspiceResult {
    stdout: string;
    stderr: string;
}
/** Run an ngspice deck in batch mode inside a scratch temp directory. */
export declare function runNgspiceDeck(deck: string, options?: RunNgspiceOptions): Promise<RunNgspiceResult>;