code: func (s *UpdateByQueryService) RequestsPerSecond(requestsPerSecond int) *UpdateByQueryService {
  	s.requestsPerSecond = &requestsPerSecond
  	return s
  }
docs: // RequestsPerSecond sets the throttle on this request in sub-requests per second.
  // -1 means set no throttle as does "unlimited" which is the only non-float this accepts.