code: func (p *Project) Scale(ctx context.Context, timeout int, servicesScale map[string]int) error {
  	// This code is a bit verbose but I wanted to parse everything up front
  	order := make([]string, 0, 0)
  	services := make(map[string]Service)
  
  	for name := range servicesScale {
  		if !p.ServiceConfigs.Has(name) {
  			return fmt.Errorf("%s is not defined in the template", name)
  		}
  
  		service, err := p.CreateService(name)
  		if err != nil {
  			return fmt.Errorf("Failed to lookup service: %s: %v", service, err)
  		}
  
  		order = append(order, name)
  		services[name] = service
  	}
  
  	for _, name := range order {
  		scale := servicesScale[name]
  		log.Infof("Setting scale %s=%d...", name, scale)
  		err := services[name].Scale(ctx, scale, timeout)
  		if err != nil {
  			return fmt.Errorf("Failed to set the scale %s=%d: %v", name, scale, err)
  		}
  	}
  	return nil
  }
docs: // Scale scales the specified services.