diff --git a/pytiled_parser/layer.py b/pytiled_parser/layer.py
index 4b6e1f3..5bf5592 100644
--- a/pytiled_parser/layer.py
+++ b/pytiled_parser/layer.py
@@ -164,3 +164,7 @@ class RawLayer(TypedDict):
     width: int
     x: int
     y: int
+
+
+def cast(*args, **kwargs):
+    pass