code: def get_islamic_holidays(self):
          
          days = list(super(IslamicMixin, self).get_islamic_holidays())
  
          if self.include_islamic_new_year:
              days.append((1, 1, "Islamic New Year"))
          if self.include_prophet_birthday:
              days.append((3, 12, "Prophet's Birthday"))
          if self.include_day_after_prophet_birthday:
              days.append((3, 13, "Day after Prophet's Birthday"))
          if self.include_start_ramadan:
              days.append((9, 1, "Start of ramadan"))
          if self.include_nuzul_al_quran:
              days.append((9, 17, "Nuzul Al-Qur'an"))
          if self.include_eid_al_fitr:
              for x in range(self.length_eid_al_fitr):
                  days.append((10, x + 1, self.eid_al_fitr_label))
          if self.include_eid_al_adha:
              for x in range(self.length_eid_al_adha):
                  days.append((12, x + 10, "Eid al-Adha"))
          if self.include_day_of_sacrifice:
              days.append((12, 10, self.day_of_sacrifice_label))
          if self.include_laylat_al_qadr:
              warnings.warn("The Islamic holiday named Laylat al-Qadr is decided"
                            " by the religious authorities. It is not possible"
                            " to compute it. You'll have to add it manually.")
          return tuple(days)
docs: Return a list of Islamic (month, day, label) for islamic holidays.
          Please take note that these dates must be expressed using the Islamic
          Calendar