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 * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Helper; /** * HelperInterface is the interface all helpers must implement. * * @author Fabien Potencier */ interface HelperInterface { /** * Sets the helper set associated with this helper. */ public function setHelperSet(?HelperSet $helperSet): void; /** * Gets the helper set associated with this helper. */ public function getHelperSet(): ?HelperSet; /** * Returns the canonical name of this helper. */ public function getName(): string; }