merge method
Implementation
BottomSheetOptions merge([BottomSheetOptions? options]) => copyWith(
anchorPoint: options?.anchorPoint,
constraints: options?.constraints,
backgroundColor: options?.backgroundColor,
elevation: options?.elevation,
shape: options?.shape,
clipBehavior: options?.clipBehavior,
barrierColor: options?.barrierColor,
barrierDismissible: options?.barrierDismissible,
enableDrag: options?.enableDrag,
isScrollControlled: options?.isScrollControlled,
routeSettings: options?.routeSettings,
useRootNavigator: options?.useRootNavigator,
transitionAnimationController: options?.transitionAnimationController);