/**
  * Determine if a given object, given ID, or the current post is an Eventbrite event.
  *
  * @param  mixed $post The current post object or event ID needed by Eventbrite_Event.
  * @return bool True if it's an Eventbrite event, false otherwise.
  */
 function eventbrite_is_event($post = null)
 {
     // If no post is given, assume the current post.
     if (!$post) {
         global $post;
     }
     // Check if the post is an Eventbrite_Event object.
     if (is_a($post, 'Eventbrite_Event')) {
         return true;
     }
     // Maybe we're working with an event ID.
     if (is_integer($post) && 10 < strlen(strval($id))) {
         $event = eventbrite_get_event(absint($post));
         return empty($event->error);
     }
     // No dice.
     return false;
 }
 /**
  * Retrieve Eventbrite_Event instance.
  *
  * @static
  * @access public
  *
  * @param int $event_id Event ID on eventbrite.com (commonly ten digits).
  * @return Eventbrite_Event|bool Eventbrite_Event object, false otherwise.
  */
 public static function get_instance($event_id)
 {
     // We can bail if no event ID was passed, or it wasn't an integer.
     if (!$event_id || !is_int($event_id)) {
         return false;
     }
     // Get the raw event.
     $event = eventbrite_get_event($event_id);
     // Return false if the ID was invalid or we got an error from the API call.
     if (!$event || !empty($event->error)) {
         return false;
     }
     // We've got an event, let's dress it up.
     return new Eventbrite_Event($event->events[0]);
 }