RulesConditionInterface.php

<?php

namespace Drupal\rules\Core;

use Drupal\rules\Context\ContextAwarePluginInterface;
use Drupal\Core\Condition\ConditionInterface;
use Drupal\rules\Context\ContextProviderInterface;

/**
 * Extends the core ConditionInterface to provide a negate() method.
 */
interface RulesConditionInterface extends ConditionInterface, ContextAwarePluginInterface, ContextProviderInterface, ConfigurationAccessControlInterface {
    
    /**
     * Negates the result after evaluating this condition.
     *
     * @param bool $negate
     *   TRUE to indicate that the condition should be negated, FALSE otherwise.
     *
     * @return $this
     */
    public function negate($negate = TRUE);

}