Construct a new foreign message handler.
Private _enabledPrivate _isPrivate _parentReadonly sessionThe client session used by the foreign handler.
Set whether the handler is able to inject foreign cells into a console.
Test whether the handler is disposed.
Private _newProtected onIOPubHandler IOPub messages.
true if the message resulted in a new cell injection or a
previously injected cell being updated and false for all other messages.
A handler for capturing API messages from other sessions that should be rendered in a given parent.