The first vertex ID of the edge.
The parameter v2 is a VertexId, which represents the identifier of the second vertex in a
graph edge.
Optional weight: numberThe weight parameter is an optional number that represents the weight of the edge.
Optional val: TThe "val" parameter is an optional parameter of type T. It is used to store a value associated with the edge.
Protected _hashPrivate _verticesProtected _setGenerated using TypeDoc
The constructor function creates an instance of a class with two vertex IDs, an optional weight, and an optional value.