public void Remove(IRoutingAgent agent)
 {
     agents.Remove(agent);
 }
 public void Remove(IRoutingAgent agent)
 {
     agents.Remove(agent);
 }
 public void Add(IRoutingAgent agent)
 {
     agents.Add(agent);
 }
 public void Add(IRoutingAgent agent)
 {
     agents.Add(agent);
 }