hunk.code_window: export interface IMessageTemplate {
     _id?: string;
     subject?: string;
     name?: string;
     type: StepTypeEnum;
     contentType?: MessageTemplateContentType;
     content: string | IEmailBlock[];
  
hunk.labels: keep keep keep add keep keep keep
hunk.after_edit:   title?: string;
  
hunk.file_path: libs/shared/src/entities/message-template/message-template.interface.ts
hunk.type: add
file: import { ApiProperty } from '@nestjs/swagger';
  
  import { EnvironmentId, ExternalSubscriberId, OrganizationId, SubscriberId, TopicId, TopicKey } from '../types';
  
  export class TopicSubscribersDto {
    @ApiProperty()
    _organizationId: OrganizationId;
  
    @ApiProperty()
    _environmentId: EnvironmentId;
  
    @ApiProperty()
    _subscriberId: SubscriberId;
  
    @ApiProperty()
    _topicId: TopicId;
  
    @ApiProperty()
    topicKey: TopicKey;
  
    @ApiProperty()
    externalSubscriberId: ExternalSubscriberId;
  }
  