Symfony\Component\Form\Extension\DependencyInjection\DependencyInjectionExtension
Symfony\Component\Form\FormFactory
Symfony\Component\Form\Extension\Core\CoreTypeGuesser
Symfony\Component\Form\Extension\Csrf\CsrfProvider\SessionCsrfProvider
true
_token
secret
Default
Symfony\Component\HttpFoundation\File\SessionBasedTemporaryStorage
abcdef
3
%form.csrf_protection.secret%
%file.temporary_storage.secret%
%file.temporary_storage.nesting_levels%
%file.temporary_storage.directory%