This is a development repository. To install the package, use this repo instead:
https://github.com/forcepusher/com.agava.webutility
To run unit tests: in Unity, go to "Window" -> "General" -> "Test Runner".
Make sure your target platform is set to WebGL in build settings.
Switch to "PlayMode" and click "Run All Tests (WebGL)". It'll take a while.
Before publishing a new version, rename "Samples" folder to "Samples~" and remove the meta file for the folder.
https://forum.unity.com/threads/samples-in-packages-manual-setup.623080/#post-4991561