Feature Request: Flagging - not uniquely geocoded

As I'm working with large sets of spatial data, I find that several of my locations are returning as not uniquely geocoded. For cleaning purposes, it would be nice for those that return as such to be flagged and then additional possible addresses to also be returned. See [stackoverflow](https://stackoverflow.com/questions/70513440/flag-geocoding-errors-in-r-using-the-ggmap-package) for current manual solution.