25.1 Defining Graph Names
Graphs that are created in a session either through loading or through mutations will
            take up a name in the session-private namespace. A graph will be placed in the public
            namespace only through publishing (that is, when calling the
                publishWithSnapshots() or the publish() methods).
            Publishing a graph will move its name from the session-private namespace to the public
            namespace.
               
There can only be one graph with a given name in a given namespace, but a name can be used in different namespaces to refer to different graphs. An operation that creates a new graph will fail if the chosen name of the new graph already exists in the session-private namespace. Publishing a graph fails if there is already a graph in the public namespace with the same name.
Parent topic: Namespaces and Sharing