public ServiceVertexType AlterVertexType(SecurityToken mySecurityToken, Int64 myTransactionToken,
ServiceVertexType myVertexType, ServiceAlterVertexChangeset myChangeset)
{
var Request = ServiceRequestFactory.MakeRequestAlterVertexType(myVertexType, myChangeset);
var Response = this.GraphDS.AlterVertexType <IVertexType>(mySecurityToken, myTransactionToken, Request,
ServiceReturnConverter.ConvertOnlyVertexType);
return(new ServiceVertexType(Response));
}