<?php
 
 namespace Illuminate\Contracts\Bus;
 
 interface Dispatcher
 {
     /**
      * Dispatch a command to its appropriate handler.
      *
      * @param  mixed  $command
      * @return mixed
      */
     public function dispatch($command);
 
     /**
      * Dispatch a command to its appropriate handler in the current process.
      *
      * @param  mixed  $command
      * @param  mixed  $handler
      * @return mixed
      */
     public function dispatchNow($command, $handler = null);
 
     /**
      * Determine if the given command has a handler.
      *
      * @param  mixed  $command
      * @return bool
      */
     public function hasCommandHandler($command);
 
     /**
      * Retrieve the handler for a command.
      *
      * @param  mixed  $command
      * @return bool|mixed
      */
     public function getCommandHandler($command);
 
     /**
      * Set the pipes commands should be piped through before dispatching.
      *
      * @param  array  $pipes
      * @return $this
      */
     public function pipeThrough(array $pipes);
 
     /**
      * Map a command to a handler.
      *
      * @param  array  $map
      * @return $this
      */
     public function map(array $map);
 }