merge method
Implementation
CupertinoModalPopupOptions merge([CupertinoModalPopupOptions? options]) =>
copyWith(
barrierDismissible: options?.barrierDismissible,
useRootNavigator: options?.useRootNavigator,
routeSettings: options?.routeSettings,
barrierColor: options?.barrierColor,
anchorPoint: options?.anchorPoint,
filter: options?.filter,
semanticsDismissible: options?.semanticsDismissible);