public static DriverRemoteConnection using(final String clusterConfFile) {
        return using(clusterConfFile, DEFAULT_TRAVERSAL_SOURCE);
    }
Creates a {@link DriverRemoteConnection} using a new {@link Cluster} instance created from the supplied
configuration file. When {@link #close()} is called, this new {@link Cluster} is also closed. By default,
this method will bind the {@link RemoteConnection} to a graph on the server named "graph".
gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/remote/DriverRemoteConnection.java