keys(), values(), entries() missing on a Record

Maybe I'm missing something, but shouldn't these methods be available on a Record type? I've looked through the whole documentation and couldn't found an explanation why Records don't have them. Even plain JS objects have them, and it would be really nice if Records have them as well, since they're quite useful.

Start by locating the Record type implementation and its existing tests, then compare the available Record API with the requested keys(), values(), and entries() methods. Done means the methods are available on Records and their behavior is covered by tests.

Written by the indexing model from the issue text.