3 namespace Drupal\Core\TypedData\Type;
6 * Interface for durations.
10 interface DurationInterface {
13 * Returns the duration.
15 * @return \DateInterval|null
16 * A DateInterval object or NULL if there is no duration.
20 public function getDuration();
25 * @param \DateInterval $duration
28 public function setDuration(\DateInterval $duration);