code: func (g *Cloud) CreateBetaGlobalBackendService(bg *computebeta.BackendService) error {
  	ctx, cancel := cloud.ContextWithCallTimeout()
  	defer cancel()
  
  	mc := newBackendServiceMetricContextWithVersion("create", "", computeBetaVersion)
  	return mc.Observe(g.c.BetaBackendServices().Insert(ctx, meta.GlobalKey(bg.Name), bg))
  }
docs: // CreateBetaGlobalBackendService creates the given beta BackendService.