#ifndef SIMGRID_S4U_NETZONE_HPP
#define SIMGRID_S4U_NETZONE_HPP
+#include <simgrid/forward.h>
+#include <xbt/signal.hpp>
+
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
-#include <xbt/base.h>
-#include <xbt/graph.h>
-#include <xbt/signal.hpp>
-
-#include <simgrid/forward.h>
-#include <simgrid/s4u/forward.hpp>
-
namespace simgrid {
-
namespace s4u {
/** @brief Networking Zones
