Function parseAttachment

parseAttachment(
    topic: string,
    itemEl: Element,
    from: string,
): XmppAttachment | undefined
Parses noticed/reaction attachment records from a PubSub item element.
Parameters
- topic: string
  PubSub topic that carried the item.
- itemEl: Element
  Item element to parse.
- from: string
  Sender JID or peer reference.
Returns XmppAttachment | undefined
A normalized attachment record or undefined.
- Defined in src/core/xmpp-pubsub.ts:92