When called with no arguments, drive_scopes() returns a named character vector of scopes associated with the Drive API. If drive_scopes(scopes =) is given, an abbreviated entry such as "drive.readonly" is expanded to a full scope ("https://www.googleapis.com/auth/drive.readonly" in this case). Unrecognized scopes are passed through unchanged.
drive_scopes(scopes =NULL)
Arguments
scopes: One or more API scopes. Each scope can be specified in full or, for Drive API-specific scopes, in an abbreviated form that is recognized by drive_scopes():