code: func GetInit(networkType string) func(dc driverapi.DriverCallback, config map[string]interface{}) error {
  	return func(dc driverapi.DriverCallback, config map[string]interface{}) error {
  		if !IsBuiltinLocalDriver(networkType) {
  			return types.BadRequestErrorf("Network type not supported: %s", networkType)
  		}
  
  		d := newDriver(networkType)
  
  		err := d.initStore(config)
  		if err != nil {
  			return err
  		}
  
  		return dc.RegisterDriver(networkType, d, driverapi.Capability{
  			DataScope:         datastore.LocalScope,
  			ConnectivityScope: datastore.LocalScope,
  		})
  	}
  }
docs: // GetInit returns an initializer for the given network type