Sent when the dev panel is already opened and listened, before the sdk is loaded. If the panel receives this message, it will replay its initial "connect" message.
Sent when the document is available for the panel to watch.
Sent initially, to synchronize the entire current state of the document.
Sent whenever the document is changed.
Sent initially, to hand over the notifications recorded so far. These are the events that cannot be replayed, so they travel beside the replay stream instead of inside it.
Sent whenever an event that cannot be replayed occurs in the document.
Definition of all messages the SDK can send to the Devtools panel.