From 8e16d122be108af8b92f31ca5a014bb9ae99fa97 Mon Sep 17 00:00:00 2001
From: Hsiao-Wei Wang <hwwang156@gmail.com>
Date: Sun, 3 Feb 2019 11:42:12 +0100
Subject: [PATCH] Update specs/core/0_beacon-chain.md

Co-Authored-By: decanus <dean@tokenate.io>
---
 specs/core/0_beacon-chain.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index b6c4d51f3..e838b23c1 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -1031,7 +1031,7 @@ def get_effective_balance(state: State, index: ValidatorIndex) -> Gwei:
 ### `total_balance`
 
 ```python
-def total_balance(state: State, validators: [ValidatorIndex]) -> Gwei: 
+def total_balance(state: BeaconState, validators: List[ValidatorIndex]) -> Gwei: 
     """
     Return the combined effective balance of an array of validators.
     """