code: def QuickAddEvent(self, event_text, reminders=None):
          
          if not event_text:
              raise GcalcliError('event_text is required for a quickAdd')
  
          if len(self.cals) != 1:
              # TODO: get a better name for this exception class
              # and use it elsewhere
              raise GcalcliError('You must only specify a single calendar\n')
  
          new_event = self._retry_with_backoff(
              self.get_cal_service()
                  .events()
                  .quickAdd(
                      calendarId=self.cals[0]['id'],
                      text=event_text
                  )
          )
  
          if reminders or not self.options['default_reminders']:
              rem = {}
              rem['reminders'] = {'useDefault': False,
                                  'overrides': []}
              for r in reminders:
                  n, m = utils.parse_reminder(r)
                  rem['reminders']['overrides'].append({'minutes': n,
                                                        'method': m})
  
              new_event = self._retry_with_backoff(
                              self.get_cal_service()
                                  .events()
                                  .patch(
                                      calendarId=self.cals[0]['id'],
                                      eventId=new_event['id'],
                                      body=rem
                                  )
                          )
  
          if self.details.get('url'):
              hlink = new_event['htmlLink']
              self.printer.msg('New event added: %s\n' % hlink, 'green')
  
          return new_event
docs: Wrapper around Google Calendar API's quickAdd