<?phpnamespaceApp\Tests;usePHPUnit\Framework\TestCase;useSymfony\Component\EventDispatcher\DependencyInjection\ExtractingEventDispatcher;finalclass FooTestextends TestCase{publicfunctiontest():void    {// ExtractingEventDispatcher is @internalnewclassextends ExtractingEventDispatcher {};$this->assertTrue(true);    }}

Other deprecation notices (1)  1x: The "Symfony\Component\EventDispatcher\DependencyInjection\ExtractingEventDispatcher" class is considered internal. It may change without further notice. You should not use it from "Symfony\Component\EventDispatcher\DependencyInjection\ExtractingEventDispatcher@anonymous".

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