Small tweak

sandflow · Dec 8, 2023 · 608a89c · 608a89c
1 parent 3caa223
commit 608a89c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/python/ttconv/isd.py b/src/main/python/ttconv/isd.py
@@ -184,7 +184,7 @@ def _make_absolute(
 
     return (begin_time, end_time)
 
-  def _region_always_has_background(region: typing.Type[model.Region]):
+  def _region_always_has_background(region: typing.Type[model.Region]) -> bool:
 
     if region.get_style(styles.StyleProperties.Opacity) == 0:
       return False