Periodically delete server-side messages

isMsgDestruct and msgDestructTime together define periodic server-side message deletion and can be submitted in one request.

await OpenIM.iMManager.conversationManager.setConversation(
  conversationID,
  ConversationReq(
    isMsgDestruct: true,
    msgDestructTime: 3600,
  ),
);

msgDestructTime is measured in seconds. Pass isMsgDestruct: false to disable the setting. This capability periodically deletes server-side messages; it is not burn after reading.

A successful Future means that the settings request completed. Merge the latest switch and interval by conversationID through onConversationChanged. For the complete listener, see Retrieve the conversation list.