code: def access_add(name, event, cid, uid, **kwargs):
      
      ctx = Context(**kwargs)
      ctx.execute_action('access:add', **{
          'unicorn': ctx.repo.create_secure_service('unicorn'),
          'service': name,
          'event': event,
          'cids': cid,
          'uids': uid,
      })
docs: Creates a new record with specified cid/uid in the event authorization.
  
      Requests with token that contains such cid/uid will have access to the specified event of a
      service.