export interface RunScriptDeps {
    error: (msg: string) => void;
    exit: (code: number) => never;
}
/**
 * Wraps a script's main function with consistent error handling and
 * exit-code mapping. ScriptError subclasses exit with their specific
 * exitCode; any other thrown value exits 1 with a generic message.
 *
 * The function may be sync or async. Returns a promise that resolves
 * before exit() is called for the failure path; on success the promise
 * simply resolves (exit() is not invoked — caller can let process end
 * naturally with code 0).
 */
export declare function runScript(deps: RunScriptDeps, fn: () => void | Promise<void>): Promise<void>;