export declare const SINGLE_TOKEN_REGEX: RegExp;
export declare const DOUBLE_TOKEN_REGEX: RegExp;
export declare const ERROR_LEVELS: {
    WARNING: string;
    FATAL: string;
};
export declare const ALLOWED_METHODS: string[];
export declare const CRLF = "\r\n";
export declare const BLANK_LINE: string;
export declare const assignRouteId: () => number;
export declare const assignMiddlewareId: () => number;