ClientID     = "345925493105-641q49rl4oflrtr46fkgqf5upiltr4bg.apps.googleusercontent.com";
    ClientSecret = "GOCSPX-v--MJyEjtV...";
    RefreshToken = "1//09ZIL_-fcxeo5CgYIARAAGAkSNwF-L9IrgkYgiYr7XQI0-ND...";

    Result = OPI_GoogleWorkspace.RefreshToken(ClientID, ClientSecret, RefreshToken);