Message ID.
Conversation ID.
Message sender type.
Feedback attached to the message. Only relevant for messages sent by the AI assistant.
Date and time the message was created.
Date and time the message was updated.
Revision number, which increments by 1 each time the message is updated. To prevent conflicting changes, the current revision must be passed when updating the message.
Ignored when creating a message.
Message body.
ID of the message that this message is answering.
Extended fields.
Tags.