Updating all elasticsearch documents while scanning

[golf-player]

Please correct me if I'm doing something dumb, but my intention is to make certain changes that involve transformations that can't be done by a script to every document in an index.

The problem is that hit is returned from scan, so I can't use the Document class' update method without making another call to elasticsearch to get the document.

I can use the elasticsearch-py update method, but was hoping there'd be a way to use the dsl functionality here. Maybe make scan return a document?

Version 6.4.0