code: def find_following_working_day(self, day):
          
          day = cleaned_date(day)
  
          while day.weekday() in self.get_weekend_days():
              day = day + timedelta(days=1)
          return day
docs: Looks for the following working day, if not already a working day.
  
          **WARNING**: this function doesn't take into account the calendar
          holidays, only the days of the week and the weekend days parameters.