hunk.code_window:         isLoading: !applicationIdentifier,
           header: header,
           footer: footer,
           emptyState: emptyState,
           listItem: listItem,
           actionsResultBlock: actionsResultBlock,
           tabs: tabs,
           showUserPreferences: showUserPreferences ?? true,
           onTabClick: onTabClick ? onTabClick : () => {},
  
hunk.labels: keep keep keep replace keep keep keep keep keep
hunk.after_edit:         emptyState: () => emptyState,
  
hunk.file_path: packages/notification-center/src/components/notification-center/NotificationCenter.tsx
hunk.type: replace
file: import { ApiProperty } from '@nestjs/swagger';
  import { IsDefined, IsBoolean } from 'class-validator';
  
  export class UpdateSubscriberOnlineFlagRequestDto {
    @ApiProperty()
    @IsDefined()
    @IsBoolean()
    isOnline: boolean;
  }
  