Fixed missing hints

rednafi · web-flow · commit c1ce8b89a33a · 2020-07-04T13:10:13.000+06:00
diff --git a/patterns/structural/composite.py b/patterns/structural/composite.py
@@ -47,7 +47,7 @@ def render(self) -> None:
     def add(self, graphic: Graphic) -> None:
         self.graphics.append(graphic)
 
-    def remove(self, graphic: Graphic):
+    def remove(self, graphic: Graphic) -> None:
         self.graphics.remove(graphic)
 
 
