https://www.progress.com/documentation/sitefinity-cms/next.js-content-list-widget

nexjsconentlistexclude.ts

import { Content, ContentSection, DisplayName } from '@progress/sitefinity-widget-designers-sdk';
import { ContentListEntity } from './content-list/content-list-entity';
import { MixedContentContext } from '../../editor/widget-framework/mixed-content-context';

export class ExtendedContentListEntity extends ContentListEntity {
  @Content({
    Type: 'Telerik.Sitefinity.Lists.Model.ListItem, Telerik.Sitefinity.News.Model.NewsItem, Telerik.Sitefinity.Events.Model.Event',
    TypeBlacklist: 'Telerik.Sitefinity.DynamicTypes.Model.PressReleases.Pressrelease'
  })
  @DisplayName('')
  @ContentSection('Select content to display', 0)
  SelectedItems: MixedContentContext | null = null;
}