/**
 * Prints error message to standard error output. Also sets the process exit
 * code to 1, since every call site is a fatal handler catch - this is what
 * makes failed commands observable to scripts and CI (a command that reports
 * an error must not exit 0).
 *
 * @param {Error} err - error to display message from
 * @param {boolean} [withStackTrace] - if true will printError error stack
 */
export declare function printError(err: Error, withStackTrace?: boolean): void;