From 6292542bf340997c97976e574684b0d39f19ee9a Mon Sep 17 00:00:00 2001
From: Xiliang Chen <xlchen1291@gmail.com>
Date: Thu, 21 May 2020 14:43:08 +1200
Subject: [PATCH] add serialize for ordered set (#177)

---
 utilities/src/ordered_set.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utilities/src/ordered_set.rs b/utilities/src/ordered_set.rs
index d8ea421..d9c3a9d 100644
--- a/utilities/src/ordered_set.rs
+++ b/utilities/src/ordered_set.rs
@@ -1,7 +1,10 @@
 use codec::{Decode, Encode};
+#[cfg(feature = "std")]
+use serde::{Deserialize, Serialize};
 use sp_runtime::RuntimeDebug;
 use sp_std::prelude::*;
 
+#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 #[derive(RuntimeDebug, PartialEq, Eq, Encode, Decode, Default)]
 pub struct OrderedSet<T>(pub Vec<T>);
 
-- 
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