From b5b2abc73693073dd4d26d226a45c59762368862 Mon Sep 17 00:00:00 2001
From: Wei Tang <wei@that.world>
Date: Thu, 19 Aug 2021 17:57:59 +0000
Subject: [PATCH] Do not implement () for Contains (#9582)

---
 substrate/frame/support/src/traits/members.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/substrate/frame/support/src/traits/members.rs b/substrate/frame/support/src/traits/members.rs
index 35405e4473..a59869c2fc 100644
--- a/substrate/frame/support/src/traits/members.rs
+++ b/substrate/frame/support/src/traits/members.rs
@@ -56,7 +56,7 @@ impl<T, C: Contains<T>> Filter<T> for C {
 	}
 }
 
-#[impl_trait_for_tuples::impl_for_tuples(30)]
+#[impl_trait_for_tuples::impl_for_tuples(1, 30)]
 impl<T> Contains<T> for Tuple {
 	fn contains(t: &T) -> bool {
 		for_tuples!( #(