https://lucene.apache.org/core/10_3_2/core/org/apache/lucene/internal/hppc/IntIntHashMap.IntIntCursor.html
IntIntHashMap.IntIntCursor (Lucene 10.3.2 core API)
declaration: package: org.apache.lucene.internal.hppc, class: IntIntHashMap, class: IntIntCursor
lucenecoreapi