code: def is_birthday(self, dt=None):
          
          if dt is None:
              dt = Date.today()
  
          instance = dt1 = self.__class__(dt.year, dt.month, dt.day)
  
          return (self.month, self.day) == (instance.month, instance.day)
docs: Check if its the birthday.
  
          Compares the date/month values of the two dates.
  
          :rtype: bool