/guava/android/guava/src/com/google/common/graph/EndpointPairIterator.java
visitedNodes = false;
visitedNodes = null;
if (!visitedNodes.contains(otherNode)) { return EndpointPair.unordered(requireNonNull(node), otherNode); } } visitedNodes.add(node); if (!advance()) { <extra_id_0> return endOfData(); } } } } }