From e22897f58846bf107c9a23e0da6b76ec78e6dd3c Mon Sep 17 00:00:00 2001
From: devhoodit <72541438+devhoodit@users.noreply.github.com>
Date: Wed, 8 Mar 2023 20:42:07 +0900
Subject: [PATCH] Fix Blackjack observation from boolean to int as expected 
 (#366)

---
 gymnasium/envs/toy_text/blackjack.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gymnasium/envs/toy_text/blackjack.py b/gymnasium/envs/toy_text/blackjack.py
index 0ade543b9..f0ba2c25f 100644
--- a/gymnasium/envs/toy_text/blackjack.py
+++ b/gymnasium/envs/toy_text/blackjack.py
@@ -25,7 +25,7 @@ def draw_hand(np_random):
 
 
 def usable_ace(hand):  # Does this hand have a usable ace?
-    return 1 in hand and sum(hand) + 10 <= 21
+    return int(1 in hand and sum(hand) + 10 <= 21)
 
 
 def sum_hand(hand):  # Return current hand total