TransformationFailedException|null
FormConfigBuilderInterface
FormInterface[] all()
offsetGet(mixed $offset) Unsupported method. This method should not be invoked.
string renderCsrfToken(string $tokenId) Renders a CSRF token. Use this helper for CSRF
configureOptions(OptionsResolver
class ResolvedFormType implements
mixed getOption(string $name, mixed $default = null) Returns the value of a specific option.
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