code: def punish_extension(self) -> None:
      self.plateau_level += self.max_plateau_increase / 5.0
  
imports: import math
  from typing import Optional
  from cftool.misc import Incrementer
  from .schema import TrainerMonitor
label_desc: Use image node_id 5 for calling the PlateauMonitor obj's underlying member method code with example usage: obj.punish_extension() without return types