declare const _default: {
    isAlphabetic: (ch: string) => boolean;
    isAlphanumeric: (ch: string) => boolean;
    isASCII: (ch: string) => boolean;
    isCJK: (ch: string) => boolean;
    isControl: (ch: string) => boolean;
    isDigit: (ch: string) => boolean;
    isGraph: (ch: string) => boolean;
    isHexadecimal: (ch: string) => boolean;
    isLower: (ch: string) => boolean;
    isPrint: (ch: string) => boolean;
    isPunctuation: (ch: string) => boolean;
    isSpace: (ch: string) => boolean;
    isUpper: (ch: string) => boolean;
};
export default _default;