Fix type hints.

domdfcoding · domdfcoding · commit e89a06e79f40 · 2021-01-04T21:55:47.000Z
diff --git a/consolekit/options.py b/consolekit/options.py
@@ -422,6 +422,8 @@ def process_value(self, ctx: click.Context, value: Any) -> Optional[Tuple]:
 				return self.default
 			else:
 				return self.type_cast_value(ctx, value)
+		else:
+			return None
 
 
 class _Option(click.Option):
