public ServiceEdgeType CreateEdgeType(SecurityToken mySecurityToken, Int64 myTransactionToken,
ServiceEdgeTypePredefinition myEdgeTypePreDef)
{
var Request = ServiceRequestFactory.MakeRequestCreateEdgeType(myEdgeTypePreDef);
var Response = this.GraphDS.CreateEdgeType <IEdgeType>(mySecurityToken, myTransactionToken, Request,
ServiceReturnConverter.ConvertOnlyEdgeType);
return(new ServiceEdgeType(Response));
}