Tracker
Class methods
get_streak(user_id : Int64) : Int32
get_todays_progress(user_id : Int64)
get_user_progress(user_id : Int64, date : String | Nil = nil)
get_week_progress(user_id : Int64)
get_yesterday_result(user_id : Int64)
update_completion(user_id : Int64, date : String, completed : Bool)