[ndnSIM] Get node ID in forwarder class

[HADIBI ABDENNOUR]

Hi,
i'm trying to get node ID in forwarder class using the following code :

auto node = ns3::NodeList::GetNode(ns3::Simulator::GetContext());
std::cout<<" Node ID : "<<node->GetId()<<std::endl;

It didnt work for me : error : 'ns3::NodeList' has not been declared
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