This seems like a small (but important) contribution, so no Contribution License Agreement is required at this point. We will now review your pull request.
Thanks,
Microsoft Pull Request Bot

The file must not be modified:

Instead you can modify [added/overriding/removed]Types.json.

You'll want to look at addedTypes.json to add a constructor to an interface.

Make sure you get pass on the build script to solve the CI failure! The generated directory will have new files and you have to copy-paste them to baselines directory.

The CI only says that the generated file doesn't match the baseline, without printing the diff. I guess I'll have to install Mono so I can generate the files locally.

Thanks for the help @saschanaz !

Thanks @alexeagle

Link to documentation: https://dom.spec.whatwg.org/#text

For future purposes, please file an issue on the TS repo along with the change.

thanks!

and thanks @saschanaz!

thank you for landing @mhegazy