1. A method, performed using a processing device, of deep cloning one or more objects in an object graph using a binary format, the method comprising: determining whether each of the one or more objects in the object graph is a host object that is created by a host or a dynamic language object that is created by a dynamic language engine hosted by the host; retrieving each dynamic language object that is included in the one or more objects from the dynamic language engine; retrieving each host object that is included in the one or more objects from the host via an intermediate representation of that host object contained in a property bag; and generating a binary representation of each dynamic language object and each host object in accordance with the binary format to provide a binary clone of the object graph.