tarball/tarball_src.go
func (*tarballImageSource) LayerInfosForCopy(ctx context.Context) ([]types.BlobInfo, error) {
	return nil, nil
}
func (*tarballImageSource) LayerInfosForCopy(ctx context.Context) ([]types.BlobInfo, error) {
	return nil, nil
}
func ( * tarballImageSource ) LayerInfosForCopy ( ctx context . Context ) ( [ ] types . BlobInfo , error ) { return nil , nil }
// LayerInfosForCopy() returns updated layer info that should be used when reading, in preference to values in the manifest, if specified.
LayerInfosForCopy () returns updated layer info that should be used when reading in preference to values in the manifest if specified .