This type represents the set of nodes of a fixed rank in a chordal network.
The object ChordalNetRank is a type, with ancestor classes MutableHashTable < HashTable < Thing.
The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/Chordal/ChordalDoc.m2:358:0.