<?php
  
  namespace Illuminate\Contracts\Queue;
  
  interface QueueableEntity
  {
      /**
       * Get the queueable identity for the entity.
       *
       * @return mixed
       */
      public function getQueueableId();
  
      /**
       * Get the relationships for the entity.
       *
       * @return array
       */
      public function getQueueableRelations();
  
      /**
       * Get the connection of the entity.
       *
       * @return string|null
       */
      public function getQueueableConnection();
  }