src/com/google/android/libraries/backup/Backup.java

package com.google.android.libraries.backup;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Indicates that a static field should be backed up. This should ONLY be used on static fields.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Backup {}