RunningMode

 using cAlgo.API;
 namespace cAlgo.Robots
 {
     // This sample shows how to use the RunningMode property of your robot
     [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class RunningModeSample : Robot
     {
         protected override void OnStart()
         {
             switch (RunningMode)
             {
                 case RunningMode.RealTime:
                     // If the robot is running on real time market condition
                     break;
                 case RunningMode.SilentBacktesting:
                     // If the robot is running on backtest and the visual mode is off
                     break;
                 case RunningMode.VisualBacktesting:
                     // If the robot is running on backtest and the visual mode is on
                     break;
                 case RunningMode.Optimization:
                     // If the robot is running on optimizer
                     break;
             }
         }
     }
 }

 import clr
 clr.AddReference("cAlgo.API")
 # Import cAlgo API types
 from cAlgo.API import *
 # Import trading wrapper functions
 from robot_wrapper import *
 class Test():
     def on_start(self):
         #  Print the error to the log
         match api.RunningMode:
             case RunningMode.RealTime:
                 print("RealTime")
             case RunningMode.SilentBacktesting:
                 print("SilentBacktesting")
             case RunningMode.VisualBacktesting:
                 print("VisualBacktesting")
             case RunningMode.Optimization:
                 print("Optimization")