public function deleteSourceImage($hash, $organization = '')
    {
        try {
            $response = $this->call('DELETE', implode('/', [self::SOURCEIMAGE_RESOURCE, $this->getOrganizationName($organization), $hash]));
        } catch (GuzzleException $e) {
            if (404 == $e->getCode()) {
                return false;
            }

            throw $e;
        }

        return '204' == $response->getStatusCode();
    }