persist: export asset

export asset so that it can be used by other packages.

Signed-off-by: Wei Zhang <[email protected]>

virtcontainers/persist/api/config.go

@@ -12,7 +12,8 @@ type Param struct {
 	Value string
 }
 
-type asset struct {
+// Asset saves hypervisor asset
+type Asset struct {
 	Path   string `json:"path"`
 	Custom bool   `json:"bool"`
 }
@@ -90,7 +91,7 @@ type HypervisorConfig struct {
 	// Each value in that map takes precedence over the configured assets.
 	// For example, if there is a value for the "kernel" key in this map,
 	// it will be used for the sandbox's kernel path instead of KernelPath.
-	customAssets map[string]*asset
+	customAssets map[string]*Asset
 
 	// BlockDeviceCacheSet specifies cache-related options will be set to block devices or not.
 	BlockDeviceCacheSet bool