See: https://github.com/googleapis/google-cloud-python/pull/4851#issuecomment-430083891 The API changed for the "create if missing" option for `set` operations, so we need to change the snippets.
See:
googleapis/google-cloud-python#4851 (comment)
The API changed for the "create if missing" option for
setoperations, so we need to change the snippets.