/**
 * A minimalist implementation to convert camel case strings to hyphenated ones.
 *
 * @param string The camel case input.
 * @returns The input, but hyphenated.
 */
export declare function camelToHyphen(string: string): string;
/**
 * Convert a string to upper case.
 *
 * @param input The string to convert to upper case.
 * @returns The input, but upper case.
 */
export declare function toUpperCase(input: string): string;
/**
 * Escape a JSON reference.
 *
 * See https://tools.ietf.org/html/rfc6901#section-3
 *
 * @param ref The JSON pointer segment to escape.
 * @returns The escaped JSON pointer segment.
 */
export declare function decodeJSONRef(ref: string): string;