ReceivedProfile

Message reception wrapper class used by .

Note: 1. For offline message reception, the server packages 200 messages into a single bundle and sends it to the client, which then parses the bundle. 2. The `hasPackage` flag indicates whether there are remaining message bundles, and `left` indicates how many messages remain after parsing and delivering this bundle to the app layer. How to determine if offline message reception is complete: 1. Both `hasPackage` and `left` are 0; 2. `hasPackage` being 0 indicates that the last bundle (200 messages) is being received, and `left` being 0 indicates that the last message in the final bundle has also been received.