public GoogleSheetSvc(string email, string tokenJson = "")
{
_user = email;
_tokenJson = tokenJson == null? "" : tokenJson;
fileToken = new FileTokenUtils(SHEET_TOKEN_ROOT, _user);
}
public GmailPersonalSvc(string email, string tokenJson = "")
{
_user = email;
_tokenJson = tokenJson;
fileToken = new FileTokenUtils(GMAIL_TOKEN_ROOT, _user);
}