public function findElements(WebDriverBy $by)
    {
        $params = [
            'using' => $by->getMechanism(),
            'value' => $by->getValue(),
            ':id' => $this->id,
        ];
        $raw_elements = $this->executor->execute(
            DriverCommand::FIND_CHILD_ELEMENTS,
            $params
        );

        $elements = [];
        foreach ($raw_elements as $raw_element) {
            $elements[] = $this->newElement($raw_element['ELEMENT']);
        }

        return $elements;
    }