/**
 * Sums up two numbers.
 *
 * @param {number} a The first number to add.
 * @param {number} b The second number to add.
 * @returns {number} The resulting sum of the two numbers.
 */
export declare function add(a: number, b: number): number
/**
 * Sums up a list of numbers.
 *
 * @param {number[]} numbers An array of numbers to add.
 * @returns {number} The resulting sum of all the numbers.
 */
export declare function add(numbers: number[]): number