From 3112e562eb72b13c38c8c8ccd586196dff31e6c9 Mon Sep 17 00:00:00 2001
From: Darren Eberly <darren.eberly@gmail.com>
Date: Sun, 14 Jun 2020 12:19:40 -0400
Subject: [PATCH] fix: changed properties list of Terrain object in tileset to
 be optional

---
 pytiled_parser/tileset.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pytiled_parser/tileset.py b/pytiled_parser/tileset.py
index bce92a6..502aaa9 100644
--- a/pytiled_parser/tileset.py
+++ b/pytiled_parser/tileset.py
@@ -39,7 +39,7 @@ class Terrain(NamedTuple):
 
     name: str
     tile: int
-    properties: properties_.Properties = {}
+    properties: Optional[properties_.Properties] = None
 
 
 @attr.s(auto_attribs=True)