Whether to store the message
Is it a status message: Status messages are not counted, not stored, and do not enter offline compensation. They can only be received when online.
Retrieval message key, used for message search matching.
When isPersited is true, the corresponding bubble UI rendering component can be defined by assigning the component property.
When this value is empty, the SDK will use the digest summary calculation function to render the message as a gray bar message for display.
Message Digest Calculation Function, used for the display of custom messages in the conversation list and message list.
In the case where both the component and digest attributes are defined simultaneously, the SDK will prioritize using the component component for message rendering.
Whether to count