/**
 * Guards a spawned child process and its stdio streams against unhandled
 * 'error' events. Attaches a single 'error' listener to the process and to
 * each present stdio stream (stdin/stdout/stderr), forwarding every emitted
 * error to the supplied callback along with the stream that produced it.
 *
 * The helper does not terminate the process; routing the error to the
 * caller's existing failure path is the callback's responsibility.
 *
 * Returns a teardown function that removes every listener it registered. The
 * teardown function is idempotent and safe to call multiple times.
 */
import type { ChildProcess } from 'node:child_process';
export type ChildProcessStreamSource = 'process' | 'stdin' | 'stdout' | 'stderr';
type ChildProcessStreamErrorHandler = (error: Error, source: ChildProcessStreamSource) => void;
export declare function guardChildProcessStreams(child: ChildProcess, onError: ChildProcessStreamErrorHandler): () => void;
export {};
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