From 4156a106854ddf4776cadc8b9ac663d6464ffb1d Mon Sep 17 00:00:00 2001
From: "Dustin C. Hatch" <dustin@hatch.name>
Date: Mon, 9 Jan 2023 11:41:40 -0600
Subject: [PATCH] hass: Omit retain when it is None

Home Assistant refuses to parse entity configuration objects if the
value of the `retain` field is `null`.
---
 src/hass.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hass.rs b/src/hass.rs
index 368d56c..1b56d70 100644
--- a/src/hass.rs
+++ b/src/hass.rs
@@ -34,6 +34,7 @@ pub struct HassConfig {
     pub unique_id: String,
     pub object_id: String,
     pub icon: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub retain: Option<bool>,
 }