protected override void CommandCallback(OleMenuCommand command)
        {
            var shouldAskConfirmation = Package.ConfirmationOptions.ShouldConfirmForDeleteAllIn(Target);

            if (!shouldAskConfirmation)
            {
                BookmarksManager.DeleteAllBookmarksIn(Target);
                return;
            }

            string message;
            var    count = BookmarksManager.GetBookmarksCount(Target);

            if (count == 0)
            {
                message = $"There are no bookmarks in {TargetDisplayName}";
                Helpers.ShowInfoMessage(message);
                return;
            }

            message =
                $@"There {(count == 1 ? "is 1 bookmark" : $"are {count} bookmarks")} in {TargetDisplayName}.