<?php
  
  namespace Illuminate\Contracts\Broadcasting;
  
  interface Broadcaster
  {
      /**
       * Authenticate the incoming request for a given channel.
       *
       * @param  \Illuminate\Http\Request  $request
       * @return mixed
       */
      public function auth($request);
  
      /**
       * Return the valid authentication response.
       *
       * @param  \Illuminate\Http\Request  $request
       * @param  mixed  $result
       * @return mixed
       */
      public function validAuthenticationResponse($request, $result);
  
      /**
       * Broadcast the given event.
       *
       * @param  array  $channels
       * @param  string  $event
       * @param  array  $payload
       * @return void
       */
      public function broadcast(array $channels, $event, array $payload = []);
  }