/**
 * Capitalizes strings according to specified options.
 * @param {string} text - The text to capitalize.
 * @param {Object} options - Capitalization options.
 * @param {boolean} [options.all=false] - Whether to capitalize all words.
 * @param {string} [options.separator=' '] - The separator between words.
 * @returns {string} The capitalized text.
 * @example
 * // Default behavior (first letter only)
 * console.log(capitalize('hello world')); // 'Hello world'
 *
 * // Capitalize all words
 * console.log(capitalize('hello world', { all: true })); // 'Hello World'
 *
 * // Custom separator
 * console.log(capitalize('hello-world', { separator: '-', all: true })); // 'Hello-World'
 */
export declare function capitalize(text: string, options?: {
    all?: boolean;
    separator?: string;
}): string;