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<?php
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namespace Guzzle\Common;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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/**
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 * Holds an event dispatcher
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 */
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interface HasDispatcherInterface
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{
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    /**
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     * Get a list of all of the events emitted from the class
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     *
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     * @return array
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     */
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    public static function getAllEvents();
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    /**
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     * Set the EventDispatcher of the request
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     *
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     * @param EventDispatcherInterface $eventDispatcher
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     *
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     * @return self
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     */
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    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher);
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    /**
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     * Get the EventDispatcher of the request
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     *
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     * @return EventDispatcherInterface
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     */
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    public function getEventDispatcher();
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    /**
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     * Helper to dispatch Guzzle events and set the event name on the event
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     *
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     * @param string $eventName Name of the event to dispatch
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     * @param array  $context   Context of the event
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     *
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     * @return Event Returns the created event object
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     */
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    public function dispatch($eventName, array $context = array());
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    /**
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     * Add an event subscriber to the dispatcher
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     *
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     * @param EventSubscriberInterface $subscriber Event subscriber
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     *
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     * @return self
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     */
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    public function addSubscriber(EventSubscriberInterface $subscriber);
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}