code: func NewBasicACI(dir string, name string) (*os.File, error) {
  	manifest := schema.ImageManifest{
  		ACKind:    schema.ImageManifestKind,
  		ACVersion: schema.AppContainerVersion,
  		Name:      types.ACIdentifier(name),
  	}
  
  	b, err := manifest.MarshalJSON()
  	if err != nil {
  		return nil, err
  	}
  
  	return NewACI(dir, string(b), nil)
  }
docs: // NewBasicACI creates a new ACI in the given directory with the given name.
  // Used for testing.