From 7736ba3ca8ad33ee4044867fbf45d6a6adc9f0b6 Mon Sep 17 00:00:00 2001
From: nextel <rm.nextel@gmail.com>
Date: Sun, 22 Sep 2019 17:03:12 +0300
Subject: [PATCH] add serde derive for optional field

---
 src/requests/kick_chat_member.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/requests/kick_chat_member.rs b/src/requests/kick_chat_member.rs
index ea590d59..2ed54f0a 100644
--- a/src/requests/kick_chat_member.rs
+++ b/src/requests/kick_chat_member.rs
@@ -20,6 +20,7 @@ pub struct KickChatMember<'a> {
     ///Date when the user will be unbanned, unix time. If user is banned for
     /// more than 366 days or less than 30 seconds from the current time they
     /// are considered to be banned forever
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub until_date: Option<u64>,
 }