import { type ChildProcess } from "child_process";
import type { EventEmitter } from "events";
export type WatchSignal = "SIGINT" | "SIGTERM";
type WatchChildProcess = EventEmitter & Pick<ChildProcess, "exitCode" | "signalCode" | "kill" | "pid">;
export declare function superviseWatchLifecycle(devServer: WatchChildProcess, stopGenerator: () => Promise<void>, signalSource?: EventEmitter): Promise<WatchSignal>;
/**
 * Prints a command failure the way a CLI should: the actionable message first,
 * nested causes indented under it, and the stack only when `--verbose` asked
 * for it. Errors raised here are written for the person running the command,
 * so a bare stack trace would bury the part that tells them what to do.
 */
export declare function reportCliError(error: unknown, argv?: readonly string[]): void;
export declare function runCli(argv?: string[]): Promise<void>;
export {};