Modifying Revisions of a File on Google Drive using Google Apps Script

Gists This is a sample script for modifying the revisions of a file on Google Drive using Google Apps Script. This script can be used for not only Google Docs files, but also the files except for Google Docs. Issue and workaround: Unfortunately, in the current stage, at Google Docs files, the revision of Google Docs cannot be directly changed by APIs with a script. So as one of several workarounds, I would like to propose to overwrite the Google Docs file using the exported data.