QueueingDispatcher.php

<?php

namespace Illuminate\Contracts\Bus;

interface QueueingDispatcher extends Dispatcher
{
    /**
     * Attempt to find the batch with the given ID.
     *
     * @param  string  $batchId
     * @return \Illuminate\Bus\Batch|null
     */
    public function findBatch(string $batchId);

    /**
     * Create a new batch of queueable jobs.
     *
     * @param  \Illuminate\Support\Collection|array  $jobs
     * @return \Illuminate\Bus\PendingBatch
     */
    public function batch($jobs);

    /**
     * Dispatch a command to its appropriate handler behind a queue.
     *
     * @param  mixed  $command
     * @return mixed
     */
    public function dispatchToQueue($command);
}
	<?php

	namespace Illuminate\Contracts\Bus;

	interface QueueingDispatcher extends Dispatcher
	{
	/**
	* Attempt to find the batch with the given ID.
	*
	* @param string $batchId
	* @return \Illuminate\Bus\Batch\|null
	*/
	public function findBatch(string $batchId);

	/**
	* Create a new batch of queueable jobs.
	*
	* @param \Illuminate\Support\Collection\|array $jobs
	* @return \Illuminate\Bus\PendingBatch
	*/
	public function batch($jobs);

	/**
	* Dispatch a command to its appropriate handler behind a queue.
	*
	* @param mixed $command
	* @return mixed
	*/
	public function dispatchToQueue($command);
	}