/**
 * @name addSeconds
 * @category Second Helpers
 * @summary Add the specified number of seconds to the given date.
 *
 * @description
 * Add the specified number of seconds to the given date.
 *
 * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
 *
 * @param date - The date to be changed
 * @param amount - The amount of seconds to be added.
 *
 * @returns The new date with the seconds added
 *
 * @example
 * // Add 30 seconds to 10 July 2014 12:45:00:
 * const result = addSeconds(new Date(2014, 6, 10, 12, 45, 0), 30)
 * //=> Thu Jul 10 2014 12:45:30
 */
export declare function addSeconds<DateType extends Date>(
  date: DateType | number | string,
  amount: number,
): DateType;