<?php namespace Illuminate\Contracts\Queue; interface QueueableCollection { /** * Get the type of the entities being queued. * * @return string|null */ public function getQueueableClass(); /** * Get the identifiers for all of the entities. * * @return array<int, mixed> */ public function getQueueableIds(); /** * Get the relationships of the entities being queued. * * @return array<int, string> */ public function getQueueableRelations(); /** * Get the connection of the entities being queued. * * @return string|null */ public function getQueueableConnection(); }