private function actionIsIn($conjunction, array $actions)
    {
        if (!empty($this->expression)) {
            $this->expression[] = $conjunction;
        }

        $expression = [];
        foreach ($actions as $action) {
            $index             = \count($this->variables);
            $expression[]      = \sprintf(self::ACTION_IS_EXPRESSION, $index);
            $this->variables[] = $action;
        }
        $this->expression[] = '(' . \implode(' or ', $expression) . ')';
        $this->compiled     = null;

        return $this;
    }