code: def fetch_todays_schedule(self, rooms):
          
          room_ids = self.fetch_room_ids(rooms)
          inst_id = self.fetch_inst_id()
          ret = {}
          now = datetime.datetime.now()
          day = DAYS[now.isoweekday() - 1]
          for room_name in room_ids:
              ret[room_name] = []
              try:
                  events = msgpack.unpack(urllib2.urlopen(
                      "%s/snapshot/head/%s/location/%s?format=msgpack" % (
                          self.url, inst_id, room_ids[room_name])))['events']
              except urllib2.HTTPError, e:
                  raise RuusterError(e)
              for event in events:
                  starttime = datetime.datetime.strptime(
                          event['starttime'], '%H:%M:%S').time()
                  endtime = datetime.datetime.strptime(
                          event['endtime'], '%H:%M:%S').time()
                  if event['day'] != day:
                      continue
                  ok = False
                  for period in event['eventperiods']:
                      startdate = datetime.datetime.strptime(
                              period['startdate'], '%Y-%m-%d %H:%M:%SZ').date()
                      enddate = datetime.datetime.strptime(
                              period['enddate'], '%Y-%m-%d %H:%M:%SZ').date()
                      if (startdate <= now.date() and now.date() <= enddate):
                          ok = True
                          break
                  if not ok:
                      continue
                  name = event['course']['name']
                  if name == 'Reserveringen' and 'comment' in event:
                      name = event['comment']
                  ret[room_name].append((starttime, endtime,
                          normalize_event_name(name)))
          return ret
docs: Fetch the schedules for the given rooms.