/guava/android/guava/src/com/google/common/graph/ImmutableGraph.java
this.mutableGraph = graphBuilder.copy ( ) .incidentEdgeOrder ( ElementOrder.<N>stable ( ) ) .build ( ) ;
BaseGraph<N> delegate() { return backingGraph; } public static class Builder<N> { private final MutableGraph<N> mutableGraph; Builder(GraphBuilder<N> graphBuilder) { <extra_id_0> } @CanIgnoreReturnValue public Builder<N> addNode(N node) { mutableGraph.addNode(node); return this; }