public void RemoveArgumentVerifier(ArgumentDefinition verifier)
 {
     var verifiersToRemove = from v in argumentDefinitions
                             where v.ArgumentSwitch == verifier.ArgumentSwitch
                             select v;
     foreach (var v in verifiersToRemove)
         argumentDefinitions.Remove(v);
 }
 public void AddArgumentVerifier(ArgumentDefinition verifier)
 {
     argumentDefinitions.Add(verifier);
 }