AttachmentCreateDTO constructor
      
      AttachmentCreateDTO({ 
    
    
- AdditionalCommentDTO? additionalComment,
 - bool? public,
 - List<
String> ? temporaryAttachmentIds, 
Implementation
AttachmentCreateDTO(
    {this.additionalComment,
    bool? public,
    List<String>? temporaryAttachmentIds})
    : public = public ?? false,
      temporaryAttachmentIds = temporaryAttachmentIds ?? [];