code: func Init(ic ipamapi.Callback, l, g interface{}) error {
  	initFunc := windowsipam.GetInit(windowsipam.DefaultIPAM)
  
  	err := InitDockerDefault(ic, l, g)
  	if err != nil {
  		return err
  	}
  
  	return initFunc(ic, l, g)
  }
docs: // Init registers the built-in ipam service with libnetwork