export declare class Constants {
    static readonly SCHEME_HTTP: string;
    static readonly SCHEME_HTTPS: string;
    static readonly SCHEME_FTP: string;
    static readonly SCHEME_FTPS: string;
    static readonly SCHEME_IRC: string;
    static readonly SCHEME_IRCS: string;
    static readonly SCHEME_MAILTO: string;
    static readonly SCHEME_FILE: string;
    static readonly SCHEME_DATA: string;
    static readonly SCHEME_TEL: string;
    static readonly SCHEME_TELNET: string;
    static readonly SCHEME_LDAP: string;
    static readonly SCHEME_SSH: string;
    static readonly SCHEME_RTSP: string;
    static readonly SCHEME_RTP: string;
    static readonly METHOD_GET: string;
    static readonly METHOD_POST: string;
    static readonly METHOD_PUT: string;
    static readonly METHOD_DELETE: string;
    static readonly METHOD_HEAD: string;
    static readonly METHOD_OPTIONS: string;
    static readonly METHOD_PATCH: string;
    static readonly PARAM_FILTER_ALPHABETS: string;
    static readonly PARAM_FILTER_ALPHABETS_LOWER: string;
    static readonly PARAM_FILTER_ALPHABETS_UPPER: string;
    static readonly PARAM_FILTER_ALPHABETS_DIGITS: string;
    static readonly PARAM_FILTER_ALPHABETS_PUNCT: string;
    static readonly PARAM_FILTER_ALPHABETS_NUMERICS_PUNCT: string;
    static readonly PARAM_FILTER_ALPHABETS_NUMERICS_PUNCT_SPECIAL: string;
    static readonly PARAM_FILTER_PUNCT: string;
    static readonly PARAM_FILTER_SPECIAL: string;
    static readonly PARAM_FILTER_DIGITS: string;
    static readonly PARAM_FILTER_NUMERICS: string;
}