export declare const CHARS = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
export declare const INVALID_CHAR_REGEXP: RegExp;
export declare const REVERSE_CHAR_MAP: Record<string, number>;