public GeneratorOptions <T> Method <TParameter>(Expression <Action <T, TParameter> > method)
 {
     domainGenerator.actionConventions.Add(
         new ActionConvention
     {
         Type   = typeof(T),
         Action = t => method.Compile().Invoke((T)t, (TParameter)domainGenerator.OneWithoutRelations(typeof(TParameter)))
     });
     return(this);
 }