Copyright 2013-2020 Elasticsearch B.V.

elasticsearch-php is licensed under the Apache License, Version 2.0
(<LICENSE-APACHE> or <http://www.apache.org/licenses/LICENSE-2.0>) or the GNU
Lesser General Public License, Version 2.1 (<LICENSE-LGPL> or
<https://www.gnu.org/licenses/lgpl-2.1.html>) at your option.