func (r *RatzServer) CheckUserActivityRecord(numOfComments int, usersToday, concurrentUsers int) { … } func (r *RatzServer) UserActivityRecord() (numOfComments int, date string) { … } func (r *RatzServer) UserTotalRecord() (numofUsers int, date string) { … } func (r *RatzServer) HighestConcurrentRecord() (numOfUsers int, date string) { … } func (r *RatzServer) CheckBlackJackPayoutRecord(winner common.UserId, payout int) { … }