must be of arity >= 2
for hyperedges and of arity == 2
for edges.
(wLHyperEdgeCompanion: StringAdd).self
(wLHyperEdgeCompanion: StringFormat).self
(wLHyperEdgeCompanion: OuterNode[WLHyperEdgeCompanion[E]]).toString()
(wLHyperEdgeCompanion: ArrowAssoc[WLHyperEdgeCompanion[E]]).x
(Since version 2.10.0) Use leftOfArrow
instead
(wLHyperEdgeCompanion: Ensuring[WLHyperEdgeCompanion[E]]).x
(Since version 2.10.0) Use resultOfEnsuring
instead