ServiceProviderInterface.php
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ServiceProviderInterface.php
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	<?php

	/*
	* This file is part of the Symfony package.
	*
	* (c) Fabien Potencier <fabien@symfony.com>
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Symfony\Contracts\Service;

	use Psr\Container\ContainerInterface;

	/**
	* A ServiceProviderInterface exposes the identifiers and the types of services provided by a container.
	*
	* @author Nicolas Grekas <p@tchwork.com>
	* @author Mateusz Sip <mateusz.sip@gmail.com>
	*
	* @template-covariant T of mixed
	*/
	interface ServiceProviderInterface extends ContainerInterface
	{
	/**
	* @return T
	*/
	public function get(string $id): mixed;

	public function has(string $id): bool;

	/**
	* Returns an associative array of service types keyed by the identifiers provided by the current container.
	*
	* Examples:
	*
	* * ['logger' => 'Psr\Log\LoggerInterface'] means the object provides a service named "logger" that implements Psr\Log\LoggerInterface
	* * ['foo' => '?'] means the container provides service name "foo" of unspecified type
	* * ['bar' => '?Bar\Baz'] means the container provides a service "bar" of type Bar\Baz\|null
	*
	* @return array<string, string> The provided service types, keyed by service names
	*/
	public function getProvidedServices(): array;
	}