/**
 * Convert a string into a decamelize lowercased one.
 *
 * @example
 * unicornsAndRainbows → unicorns_and_rainbows
 * myURLString → my_url_string
 *
 * @param text The string to decamelize.
 * @returns The decamelized string.
 */
export declare function decamelize(text: string): string;