Add Terms From Editor Script

I'm looking for a way to add terms, as shown here , except do so via an editor window script. I haven't found a method that seems to do this.

At this point I'm assuming there is no official way to do this, and so I'm looking for workarounds. I have a lot of data that I don't want to copy and paste, so I need to automate the process through script.

So far, the best I might be able to do is to have my script export the terms I want it to add as a csv and then import/merge those with the I2Languages.prefab. This is less than ideal for my project, but works if nothing else does.

If anyone knows of way to add terms through an editor script, please let me know.

Thank you.
This is very helpful.