/**
 * Capitalizes the first letter of a string.
 *
 * @param target - The string to be capitalized.
 * @return - The capitalized string.
 */
export declare const capitalize: <T extends string>(target: T) => Capitalize<T>;
/**
 * Returns a new string with the first character converted to lowercase.
 *
 * @param target - The string to be unCapitalized.
 * @returns - The unCapitalized string.
 */
export declare const unCapitalize: <T extends string>(target: T) => Uncapitalize<T>;