The preferred installation method is via composer. You can add the library as a dependency via:
composer require <AUTHOR>/<PROJECT NAME>
li₃ plugins must be registered within your application bootstrap phase as they use a different (faster) autoloader.
Libraries::add('<PROJECT NAME>')
The official manual has more information on how to register the plugin with the app or use alternative installation methods (i.e. via GIT).
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Copyright . All rights reserved. This library is distributed under the terms of the BSD 3-Clause License. The full license text can be found in the LICENSE.txt file.