001package com.typesafe.config;
002
003import java.lang.annotation.Documented;
004import java.lang.annotation.Retention;
005import java.lang.annotation.RetentionPolicy;
006
007/**
008 * Allows an config property to be {@code null}.
009 */
010@Documented
011@Retention(RetentionPolicy.RUNTIME)
012public @interface Optional {
013
014}