must be of arity >= 2
for hyperedges and of arity == 2
for edges.
(wHyperEdgeCompanion: StringAdd).self
(wHyperEdgeCompanion: StringFormat).self
(wHyperEdgeCompanion: OuterNode[WHyperEdgeCompanion[E]]).toString()
(wHyperEdgeCompanion: ArrowAssoc[WHyperEdgeCompanion[E]]).x
(Since version 2.10.0) Use leftOfArrow
instead
(wHyperEdgeCompanion: Ensuring[WHyperEdgeCompanion[E]]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
Everything common to weighted hyperedge companion objects.