AttachmentAttribute

The attachment attribute is an object that extends AttributeBase and contains the following properties:

Property	Description	Required
type	'attachment'	Yes
format	The format of the attachment. Can be 'image', 'video', 'audio', 'document', or 'any'.	Yes
maxSize	The maximum size of the attachment in bytes.	No
location	The location of the attachment. Can be 'local' (default) or 'cloud'.	No

For cloud storage, you need to configure FileService.