code: public VertexElement addVertexElementWithEdgeIdProperty(Schema.BaseType baseType, ConceptId conceptId) {
          return executeLockingMethod(() -> factory().addVertexElementWithEdgeIdProperty(baseType, conceptId));
      }
docs: This is only used when reifying a Relation
  
  @param baseType  Concept BaseType which will become the VertexLabel
  @param conceptId ConceptId to be set on the vertex
  @return just created Vertex