              raise ValueError("To enable the timelapse, you have to supply "
                               "all the parameters (--timelapse-input-A and "
                               "--timelapse-input-B).")
  
          for folder in (self.args.timelapse_input_a,
                         self.args.timelapse_input_b,
                         timelapse_output):
              if folder is not None and not os.path.isdir(folder):
 
</s> remove                   "output": self.args.timelapse_output}
 </s> add                   "output": timelapse_output} </s> remove                        self.args.timelapse_output):
 </s> add                        timelapse_output):
        if self.args.timelapse_output is not None:
            timelapse_output = str(get_folder(self.args.timelapse_output))

              raise ValueError("To enable the timelapse, you have to supply "
                               "all the parameters (--timelapse-input-A and "
                               "--timelapse-input-B).")
  
        if self.args.timelapse_output is not None:
            timelapse_output = str(get_folder(self.args.timelapse_output))

          for folder in (self.args.timelapse_input_a,
                         self.args.timelapse_input_b,
                         timelapse_output):
              if folder is not None and not os.path.isdir(folder):
keep keep keep add keep keep keep keep
 Create timelapse output folder if it does not exist 
scripts/train.py