class Threshold() :
   def __init__(self, threshold) :
      self.threshold = threshold
      self.breached = False

   def can_breach(self) :
      return False

   def set_breached(self, value) :
      self.breached = self.exceeds(value)

   def get_breached(self) :
      return self.breached

   def exceeds(self, value) :
      return False

   def get_threshold(self) :
      return self.threshold