SETUtil for Unity is an open-source project, publicly available free of charge.
The purpose of SETUtil is providing common utilities, to allow for more streamlined editor tool development (for asset store publishers and developers alike).
It allows common methods to be delegated to the SETUtil library, and also provides useful data container classes, complete with operators & constructors.
This package is a subject of constant improvements and feature development! This is NOT a complete package, it is an ever-expanding utility library!
It is strongly advised that you explicitly specify the version of the package that you are using when you share/publish your project.