export declare const DISPLAY_TEXT_CONTRACT: {
    readonly controlRanges: "\\u0000-\\u001F\\u007F-\\u009F";
    readonly pattern: "^(?![\\s\\S]*[\\u0000-\\u001F\\u007F-\\u009F])[\\s\\S]+$";
};
export declare function hasDisplayControlCharacters(value: string): boolean;