/guava/android/guava/src/com/google/common/graph/StandardMutableGraph.java
return backingValueGraph.removeNode( node) ;
return backingValueGraph.addNode ( node ) ;
@Override BaseGraph<N> delegate() { return backingValueGraph; } @Override public boolean addNode(N node) { <extra_id_0> } @Override public boolean putEdge(N nodeU, N nodeV) { return backingValueGraph.putEdgeValue(nodeU, nodeV, Presence.EDGE_EXISTS) == null; } @Override