client/lxd_images.go
func (r *ProtocolLXD) GetImageFile(fingerprint string, req ImageFileRequest) (*ImageFileResponse, error) {
	return r.GetPrivateImageFile(fingerprint, "", req)
}
func (r *ProtocolLXD) GetImageFile(fingerprint string, req ImageFileRequest) (*ImageFileResponse, error) {
	return r.GetPrivateImageFile(fingerprint, "", req)
}
// GetImageFile downloads an image from the server, returning an ImageFileRequest struct